Home / 102,064.91-140,849.39-56,747.08

Finding the Fourth Proportional to 102,064.91, 140,849.39 and 56,747.08

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Solution

The fourth proportional to 102,064.91, 140,849.39 and 56,747.08 is: 78,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,064.91 : 140,849.39 = 56,747.08 : x
  2. Step 2: Convert to fraction form
    102,064.91/140,849.39 = 56,747.08/x
  3. Step 3: Cross multiply
    102,064.91x = 140,849.39 × 56,747.08
  4. Step 4: Simplify right side
    102,064.91x = 7,992,790,614.30
  5. Step 5: Solve for x
    x = 7,992,790,614.30/102,064.91
  6. Step 6: Final answer
    x = 78,310.86

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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.