Home / 102,461.24-141,397.13-57,142.10

Finding the Fourth Proportional to 102,461.24, 141,397.13 and 57,142.10

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Solution

The fourth proportional to 102,461.24, 141,397.13 and 57,142.10 is: 78,856.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,461.24 : 141,397.13 = 57,142.10 : x
  2. Step 2: Convert to fraction form
    102,461.24/141,397.13 = 57,142.10/x
  3. Step 3: Cross multiply
    102,461.24x = 141,397.13 × 57,142.10
  4. Step 4: Simplify right side
    102,461.24x = 8,079,728,942.17
  5. Step 5: Solve for x
    x = 8,079,728,942.17/102,461.24
  6. Step 6: Final answer
    x = 78,856.44

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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.