Home / 102,566.40-141,331.68-75,666.40

Finding the Fourth Proportional to 102,566.40, 141,331.68 and 75,666.40

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Solution

The fourth proportional to 102,566.40, 141,331.68 and 75,666.40 is: 104,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,566.40 : 141,331.68 = 75,666.40 : x
  2. Step 2: Convert to fraction form
    102,566.40/141,331.68 = 75,666.40/x
  3. Step 3: Cross multiply
    102,566.40x = 141,331.68 × 75,666.40
  4. Step 4: Simplify right side
    102,566.40x = 10,694,059,431.55
  5. Step 5: Solve for x
    x = 10,694,059,431.55/102,566.40
  6. Step 6: Final answer
    x = 104,264.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.