Home / 124,916.78-187,375.26-31,422.50

Finding the Fourth Proportional to 124,916.78, 187,375.26 and 31,422.50

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Solution

The fourth proportional to 124,916.78, 187,375.26 and 31,422.50 is: 47,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,916.78 : 187,375.26 = 31,422.50 : x
  2. Step 2: Convert to fraction form
    124,916.78/187,375.26 = 31,422.50/x
  3. Step 3: Cross multiply
    124,916.78x = 187,375.26 × 31,422.50
  4. Step 4: Simplify right side
    124,916.78x = 5,887,799,107.35
  5. Step 5: Solve for x
    x = 5,887,799,107.35/124,916.78
  6. Step 6: Final answer
    x = 47,133.77

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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.