Home / 99,729.60-149,594.40-60,331.20

Finding the Fourth Proportional to 99,729.60, 149,594.40 and 60,331.20

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Solution

The fourth proportional to 99,729.60, 149,594.40 and 60,331.20 is: 90,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,729.60 : 149,594.40 = 60,331.20 : x
  2. Step 2: Convert to fraction form
    99,729.60/149,594.40 = 60,331.20/x
  3. Step 3: Cross multiply
    99,729.60x = 149,594.40 × 60,331.20
  4. Step 4: Simplify right side
    99,729.60x = 9,025,209,665.28
  5. Step 5: Solve for x
    x = 9,025,209,665.28/99,729.60
  6. Step 6: Final answer
    x = 90,496.80

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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.