Home / 138,833.60-191,625.28-124,661.76

Finding the Fourth Proportional to 138,833.60, 191,625.28 and 124,661.76

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Solution

The fourth proportional to 138,833.60, 191,625.28 and 124,661.76 is: 172,064.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,833.60 : 191,625.28 = 124,661.76 : x
  2. Step 2: Convert to fraction form
    138,833.60/191,625.28 = 124,661.76/x
  3. Step 3: Cross multiply
    138,833.60x = 191,625.28 × 124,661.76
  4. Step 4: Simplify right side
    138,833.60x = 23,888,344,665.29
  5. Step 5: Solve for x
    x = 23,888,344,665.29/138,833.60
  6. Step 6: Final answer
    x = 172,064.58

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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.