Home / 187,079.52-280,610.16-68,741.76

Finding the Fourth Proportional to 187,079.52, 280,610.16 and 68,741.76

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Solution

The fourth proportional to 187,079.52, 280,610.16 and 68,741.76 is: 103,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,079.52 : 280,610.16 = 68,741.76 : x
  2. Step 2: Convert to fraction form
    187,079.52/280,610.16 = 68,741.76/x
  3. Step 3: Cross multiply
    187,079.52x = 280,610.16 × 68,741.76
  4. Step 4: Simplify right side
    187,079.52x = 19,289,636,272.28
  5. Step 5: Solve for x
    x = 19,289,636,272.28/187,079.52
  6. Step 6: Final answer
    x = 103,109.29

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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.