Home / 107,884.40-161,740.20-45,503.60

Finding the Fourth Proportional to 107,884.40, 161,740.20 and 45,503.60

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Solution

The fourth proportional to 107,884.40, 161,740.20 and 45,503.60 is: 68,218.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,884.40 : 161,740.20 = 45,503.60 : x
  2. Step 2: Convert to fraction form
    107,884.40/161,740.20 = 45,503.60/x
  3. Step 3: Cross multiply
    107,884.40x = 161,740.20 × 45,503.60
  4. Step 4: Simplify right side
    107,884.40x = 7,359,761,364.72
  5. Step 5: Solve for x
    x = 7,359,761,364.72/107,884.40
  6. Step 6: Final answer
    x = 68,218.96

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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.