Home / 124,737.30-172,137.47-68,148.68

Finding the Fourth Proportional to 124,737.30, 172,137.47 and 68,148.68

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Solution

The fourth proportional to 124,737.30, 172,137.47 and 68,148.68 is: 94,045.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,737.30 : 172,137.47 = 68,148.68 : x
  2. Step 2: Convert to fraction form
    124,737.30/172,137.47 = 68,148.68/x
  3. Step 3: Cross multiply
    124,737.30x = 172,137.47 × 68,148.68
  4. Step 4: Simplify right side
    124,737.30x = 11,730,941,359.04
  5. Step 5: Solve for x
    x = 11,730,941,359.04/124,737.30
  6. Step 6: Final answer
    x = 94,045.18

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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.