Home / 102,391.24-141,282.78-57,059.28

Finding the Fourth Proportional to 102,391.24, 141,282.78 and 57,059.28

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Solution

The fourth proportional to 102,391.24, 141,282.78 and 57,059.28 is: 78,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,391.24 : 141,282.78 = 57,059.28 : x
  2. Step 2: Convert to fraction form
    102,391.24/141,282.78 = 57,059.28/x
  3. Step 3: Cross multiply
    102,391.24x = 141,282.78 × 57,059.28
  4. Step 4: Simplify right side
    102,391.24x = 8,061,493,703.20
  5. Step 5: Solve for x
    x = 8,061,493,703.20/102,391.24
  6. Step 6: Final answer
    x = 78,732.26

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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.