Home / 138,746.35-191,470.44-75,084.13

Finding the Fourth Proportional to 138,746.35, 191,470.44 and 75,084.13

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Solution

The fourth proportional to 138,746.35, 191,470.44 and 75,084.13 is: 103,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746.35 : 191,470.44 = 75,084.13 : x
  2. Step 2: Convert to fraction form
    138,746.35/191,470.44 = 75,084.13/x
  3. Step 3: Cross multiply
    138,746.35x = 191,470.44 × 75,084.13
  4. Step 4: Simplify right side
    138,746.35x = 14,376,391,408.12
  5. Step 5: Solve for x
    x = 14,376,391,408.12/138,746.35
  6. Step 6: Final answer
    x = 103,616.36

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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.