Home / 138,732.30-208,098.42-58,782.86

Finding the Fourth Proportional to 138,732.30, 208,098.42 and 58,782.86

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Solution

The fourth proportional to 138,732.30, 208,098.42 and 58,782.86 is: 88,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,732.30 : 208,098.42 = 58,782.86 : x
  2. Step 2: Convert to fraction form
    138,732.30/208,098.42 = 58,782.86/x
  3. Step 3: Cross multiply
    138,732.30x = 208,098.42 × 58,782.86
  4. Step 4: Simplify right side
    138,732.30x = 12,232,620,289.08
  5. Step 5: Solve for x
    x = 12,232,620,289.08/138,732.30
  6. Step 6: Final answer
    x = 88,174.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.