Home / 187,053.08-280,691.40-68,736.38

Finding the Fourth Proportional to 187,053.08, 280,691.40 and 68,736.38

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Solution

The fourth proportional to 187,053.08, 280,691.40 and 68,736.38 is: 103,145.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,053.08 : 280,691.40 = 68,736.38 : x
  2. Step 2: Convert to fraction form
    187,053.08/280,691.40 = 68,736.38/x
  3. Step 3: Cross multiply
    187,053.08x = 280,691.40 × 68,736.38
  4. Step 4: Simplify right side
    187,053.08x = 19,293,710,733.13
  5. Step 5: Solve for x
    x = 19,293,710,733.13/187,053.08
  6. Step 6: Final answer
    x = 103,145.65

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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.