Home / 102,562.12-141,535.85-57,240.10

Finding the Fourth Proportional to 102,562.12, 141,535.85 and 57,240.10

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Solution

The fourth proportional to 102,562.12, 141,535.85 and 57,240.10 is: 78,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,562.12 : 141,535.85 = 57,240.10 : x
  2. Step 2: Convert to fraction form
    102,562.12/141,535.85 = 57,240.10/x
  3. Step 3: Cross multiply
    102,562.12x = 141,535.85 × 57,240.10
  4. Step 4: Simplify right side
    102,562.12x = 8,101,525,499.91
  5. Step 5: Solve for x
    x = 8,101,525,499.91/102,562.12
  6. Step 6: Final answer
    x = 78,991.40

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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.