Home / 157,286.93-217,062.08-89,310.21

Finding the Fourth Proportional to 157,286.93, 217,062.08 and 89,310.21

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Solution

The fourth proportional to 157,286.93, 217,062.08 and 89,310.21 is: 123,251.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,286.93 : 217,062.08 = 89,310.21 : x
  2. Step 2: Convert to fraction form
    157,286.93/217,062.08 = 89,310.21/x
  3. Step 3: Cross multiply
    157,286.93x = 217,062.08 × 89,310.21
  4. Step 4: Simplify right side
    157,286.93x = 19,385,859,501.29
  5. Step 5: Solve for x
    x = 19,385,859,501.29/157,286.93
  6. Step 6: Final answer
    x = 123,251.56

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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.