Home / 157,601.72-217,489.34-89,618.70

Finding the Fourth Proportional to 157,601.72, 217,489.34 and 89,618.70

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Solution

The fourth proportional to 157,601.72, 217,489.34 and 89,618.70 is: 123,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,601.72 : 217,489.34 = 89,618.70 : x
  2. Step 2: Convert to fraction form
    157,601.72/217,489.34 = 89,618.70/x
  3. Step 3: Cross multiply
    157,601.72x = 217,489.34 × 89,618.70
  4. Step 4: Simplify right side
    157,601.72x = 19,491,112,138.70
  5. Step 5: Solve for x
    x = 19,491,112,138.70/157,601.72
  6. Step 6: Final answer
    x = 123,673.22

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1.5x scale

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.