Home / 243,839.71-336,499.30-136,411.54

Finding the Fourth Proportional to 243,839.71, 336,499.30 and 136,411.54

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Solution

The fourth proportional to 243,839.71, 336,499.30 and 136,411.54 is: 188,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,839.71 : 336,499.30 = 136,411.54 : x
  2. Step 2: Convert to fraction form
    243,839.71/336,499.30 = 136,411.54/x
  3. Step 3: Cross multiply
    243,839.71x = 336,499.30 × 136,411.54
  4. Step 4: Simplify right side
    243,839.71x = 45,902,387,721.92
  5. Step 5: Solve for x
    x = 45,902,387,721.92/243,839.71
  6. Step 6: Final answer
    x = 188,248.21

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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.