Home / 124,149.91-171,315.02-69,689.61

Finding the Fourth Proportional to 124,149.91, 171,315.02 and 69,689.61

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Solution

The fourth proportional to 124,149.91, 171,315.02 and 69,689.61 is: 96,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,149.91 : 171,315.02 = 69,689.61 : x
  2. Step 2: Convert to fraction form
    124,149.91/171,315.02 = 69,689.61/x
  3. Step 3: Cross multiply
    124,149.91x = 171,315.02 × 69,689.61
  4. Step 4: Simplify right side
    124,149.91x = 11,938,876,930.94
  5. Step 5: Solve for x
    x = 11,938,876,930.94/124,149.91
  6. Step 6: Final answer
    x = 96,165.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.