Home / 187,071.10-280,634.31-68,733.20

Finding the Fourth Proportional to 187,071.10, 280,634.31 and 68,733.20

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Solution

The fourth proportional to 187,071.10, 280,634.31 and 68,733.20 is: 103,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,071.10 : 280,634.31 = 68,733.20 : x
  2. Step 2: Convert to fraction form
    187,071.10/280,634.31 = 68,733.20/x
  3. Step 3: Cross multiply
    187,071.10x = 280,634.31 × 68,733.20
  4. Step 4: Simplify right side
    187,071.10x = 19,288,894,857.68
  5. Step 5: Solve for x
    x = 19,288,894,857.68/187,071.10
  6. Step 6: Final answer
    x = 103,109.97

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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.