Home / 157,886.52-217,876.92-86,269

Finding the Fourth Proportional to 157,886.52, 217,876.92 and 86,269

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Solution

The fourth proportional to 157,886.52, 217,876.92 and 86,269 is: 119,047.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,886.52 : 217,876.92 = 86,269 : x
  2. Step 2: Convert to fraction form
    157,886.52/217,876.92 = 86,269/x
  3. Step 3: Cross multiply
    157,886.52x = 217,876.92 × 86,269
  4. Step 4: Simplify right side
    157,886.52x = 18,796,024,011.48
  5. Step 5: Solve for x
    x = 18,796,024,011.48/157,886.52
  6. Step 6: Final answer
    x = 119,047.68

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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.