Home / 107,847,420.80-161,771,131.20-90,628,732.40

Finding the Fourth Proportional to 107,847,420.80, 161,771,131.20 and 90,628,732.40

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Solution

The fourth proportional to 107,847,420.80, 161,771,131.20 and 90,628,732.40 is: 135,943,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,847,420.80 : 161,771,131.20 = 90,628,732.40 : x
  2. Step 2: Convert to fraction form
    107,847,420.80/161,771,131.20 = 90,628,732.40/x
  3. Step 3: Cross multiply
    107,847,420.80x = 161,771,131.20 × 90,628,732.40
  4. Step 4: Simplify right side
    107,847,420.80x = 14,661,112,559,570,090
  5. Step 5: Solve for x
    x = 14,661,112,559,570,090/107,847,420.80
  6. Step 6: Final answer
    x = 135,943,098.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.