Home / 102,016.28-140,779.68-56,694.08

Finding the Fourth Proportional to 102,016.28, 140,779.68 and 56,694.08

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Solution

The fourth proportional to 102,016.28, 140,779.68 and 56,694.08 is: 78,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,016.28 : 140,779.68 = 56,694.08 : x
  2. Step 2: Convert to fraction form
    102,016.28/140,779.68 = 56,694.08/x
  3. Step 3: Cross multiply
    102,016.28x = 140,779.68 × 56,694.08
  4. Step 4: Simplify right side
    102,016.28x = 7,981,374,440.29
  5. Step 5: Solve for x
    x = 7,981,374,440.29/102,016.28
  6. Step 6: Final answer
    x = 78,236.28

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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.