Home / 124,740.39-172,133.69-68,151.72

Finding the Fourth Proportional to 124,740.39, 172,133.69 and 68,151.72

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Solution

The fourth proportional to 124,740.39, 172,133.69 and 68,151.72 is: 94,044.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,740.39 : 172,133.69 = 68,151.72 : x
  2. Step 2: Convert to fraction form
    124,740.39/172,133.69 = 68,151.72/x
  3. Step 3: Cross multiply
    124,740.39x = 172,133.69 × 68,151.72
  4. Step 4: Simplify right side
    124,740.39x = 11,731,206,702.69
  5. Step 5: Solve for x
    x = 11,731,206,702.69/124,740.39
  6. Step 6: Final answer
    x = 94,044.97

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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.