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Finding the Fourth Proportional to 107,400.60, 161,100.90 and 92,310.30

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Solution

The fourth proportional to 107,400.60, 161,100.90 and 92,310.30 is: 138,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,400.60 : 161,100.90 = 92,310.30 : x
  2. Step 2: Convert to fraction form
    107,400.60/161,100.90 = 92,310.30/x
  3. Step 3: Cross multiply
    107,400.60x = 161,100.90 × 92,310.30
  4. Step 4: Simplify right side
    107,400.60x = 14,871,272,409.27
  5. Step 5: Solve for x
    x = 14,871,272,409.27/107,400.60
  6. Step 6: Final answer
    x = 138,465.45

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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.