Home / 138,746.73-191,470.97-75,084.51

Finding the Fourth Proportional to 138,746.73, 191,470.97 and 75,084.51

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Solution

The fourth proportional to 138,746.73, 191,470.97 and 75,084.51 is: 103,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746.73 : 191,470.97 = 75,084.51 : x
  2. Step 2: Convert to fraction form
    138,746.73/191,470.97 = 75,084.51/x
  3. Step 3: Cross multiply
    138,746.73x = 191,470.97 × 75,084.51
  4. Step 4: Simplify right side
    138,746.73x = 14,376,503,961.67
  5. Step 5: Solve for x
    x = 14,376,503,961.67/138,746.73
  6. Step 6: Final answer
    x = 103,616.88

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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.