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Finding the Fourth Proportional to 88,715.70, 133,073.55 and 86,966.10

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Solution

The fourth proportional to 88,715.70, 133,073.55 and 86,966.10 is: 130,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,715.70 : 133,073.55 = 86,966.10 : x
  2. Step 2: Convert to fraction form
    88,715.70/133,073.55 = 86,966.10/x
  3. Step 3: Cross multiply
    88,715.70x = 133,073.55 × 86,966.10
  4. Step 4: Simplify right side
    88,715.70x = 11,572,887,656.66
  5. Step 5: Solve for x
    x = 11,572,887,656.66/88,715.70
  6. Step 6: Final answer
    x = 130,449.15

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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.