Home / 124,693.62-187,098.75-72,147.30

Finding the Fourth Proportional to 124,693.62, 187,098.75 and 72,147.30

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Solution

The fourth proportional to 124,693.62, 187,098.75 and 72,147.30 is: 108,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,693.62 : 187,098.75 = 72,147.30 : x
  2. Step 2: Convert to fraction form
    124,693.62/187,098.75 = 72,147.30/x
  3. Step 3: Cross multiply
    124,693.62x = 187,098.75 × 72,147.30
  4. Step 4: Simplify right side
    124,693.62x = 13,498,669,645.88
  5. Step 5: Solve for x
    x = 13,498,669,645.88/124,693.62
  6. Step 6: Final answer
    x = 108,254.69

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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.