Home / 125,350.78-172,983.16-67,989.93

Finding the Fourth Proportional to 125,350.78, 172,983.16 and 67,989.93

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Solution

The fourth proportional to 125,350.78, 172,983.16 and 67,989.93 is: 93,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,350.78 : 172,983.16 = 67,989.93 : x
  2. Step 2: Convert to fraction form
    125,350.78/172,983.16 = 67,989.93/x
  3. Step 3: Cross multiply
    125,350.78x = 172,983.16 × 67,989.93
  4. Step 4: Simplify right side
    125,350.78x = 11,761,112,939.58
  5. Step 5: Solve for x
    x = 11,761,112,939.58/125,350.78
  6. Step 6: Final answer
    x = 93,825.61

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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.