Home / 124,916.07-187,290.88-68,782.61

Finding the Fourth Proportional to 124,916.07, 187,290.88 and 68,782.61

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Solution

The fourth proportional to 124,916.07, 187,290.88 and 68,782.61 is: 103,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,916.07 : 187,290.88 = 68,782.61 : x
  2. Step 2: Convert to fraction form
    124,916.07/187,290.88 = 68,782.61/x
  3. Step 3: Cross multiply
    124,916.07x = 187,290.88 × 68,782.61
  4. Step 4: Simplify right side
    124,916.07x = 12,882,354,275.23
  5. Step 5: Solve for x
    x = 12,882,354,275.23/124,916.07
  6. Step 6: Final answer
    x = 103,128.08

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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.