Home / 102,687.32-141,703.43-57,356.28

Finding the Fourth Proportional to 102,687.32, 141,703.43 and 57,356.28

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Solution

The fourth proportional to 102,687.32, 141,703.43 and 57,356.28 is: 79,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,687.32 : 141,703.43 = 57,356.28 : x
  2. Step 2: Convert to fraction form
    102,687.32/141,703.43 = 57,356.28/x
  3. Step 3: Cross multiply
    102,687.32x = 141,703.43 × 57,356.28
  4. Step 4: Simplify right side
    102,687.32x = 8,127,581,608.04
  5. Step 5: Solve for x
    x = 8,127,581,608.04/102,687.32
  6. Step 6: Final answer
    x = 79,148.83

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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.