Home / 157,694.12-217,617-86,073.92

Finding the Fourth Proportional to 157,694.12, 217,617 and 86,073.92

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Solution

The fourth proportional to 157,694.12, 217,617 and 86,073.92 is: 118,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,694.12 : 217,617 = 86,073.92 : x
  2. Step 2: Convert to fraction form
    157,694.12/217,617 = 86,073.92/x
  3. Step 3: Cross multiply
    157,694.12x = 217,617 × 86,073.92
  4. Step 4: Simplify right side
    157,694.12x = 18,731,148,248.64
  5. Step 5: Solve for x
    x = 18,731,148,248.64/157,694.12
  6. Step 6: Final answer
    x = 118,781.53

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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.