Home / 106,330.80-159,496.20-89,127.60

Finding the Fourth Proportional to 106,330.80, 159,496.20 and 89,127.60

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Solution

The fourth proportional to 106,330.80, 159,496.20 and 89,127.60 is: 133,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,330.80 : 159,496.20 = 89,127.60 : x
  2. Step 2: Convert to fraction form
    106,330.80/159,496.20 = 89,127.60/x
  3. Step 3: Cross multiply
    106,330.80x = 159,496.20 × 89,127.60
  4. Step 4: Simplify right side
    106,330.80x = 14,215,513,515.12
  5. Step 5: Solve for x
    x = 14,215,513,515.12/106,330.80
  6. Step 6: Final answer
    x = 133,691.40

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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.