Home / 124,929.80-187,005.90-72,182.60

Finding the Fourth Proportional to 124,929.80, 187,005.90 and 72,182.60

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Solution

The fourth proportional to 124,929.80, 187,005.90 and 72,182.60 is: 108,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,929.80 : 187,005.90 = 72,182.60 : x
  2. Step 2: Convert to fraction form
    124,929.80/187,005.90 = 72,182.60/x
  3. Step 3: Cross multiply
    124,929.80x = 187,005.90 × 72,182.60
  4. Step 4: Simplify right side
    124,929.80x = 13,498,572,077.34
  5. Step 5: Solve for x
    x = 13,498,572,077.34/124,929.80
  6. Step 6: Final answer
    x = 108,049.26

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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.