Home / 157,724.66-217,660.38-86,104.70

Finding the Fourth Proportional to 157,724.66, 217,660.38 and 86,104.70

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Solution

The fourth proportional to 157,724.66, 217,660.38 and 86,104.70 is: 118,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,724.66 : 217,660.38 = 86,104.70 : x
  2. Step 2: Convert to fraction form
    157,724.66/217,660.38 = 86,104.70/x
  3. Step 3: Cross multiply
    157,724.66x = 217,660.38 × 86,104.70
  4. Step 4: Simplify right side
    157,724.66x = 18,741,581,721.79
  5. Step 5: Solve for x
    x = 18,741,581,721.79/157,724.66
  6. Step 6: Final answer
    x = 118,824.68

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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.