Home / 157,635.78-217,537.36-101,047.15

Finding the Fourth Proportional to 157,635.78, 217,537.36 and 101,047.15

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Solution

The fourth proportional to 157,635.78, 217,537.36 and 101,047.15 is: 139,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,635.78 : 217,537.36 = 101,047.15 : x
  2. Step 2: Convert to fraction form
    157,635.78/217,537.36 = 101,047.15/x
  3. Step 3: Cross multiply
    157,635.78x = 217,537.36 × 101,047.15
  4. Step 4: Simplify right side
    157,635.78x = 21,981,530,246.52
  5. Step 5: Solve for x
    x = 21,981,530,246.52/157,635.78
  6. Step 6: Final answer
    x = 139,445.06

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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.