Home / 157,490.35-217,355.13-89,517.54

Finding the Fourth Proportional to 157,490.35, 217,355.13 and 89,517.54

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Solution

The fourth proportional to 157,490.35, 217,355.13 and 89,517.54 is: 123,544.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,490.35 : 217,355.13 = 89,517.54 : x
  2. Step 2: Convert to fraction form
    157,490.35/217,355.13 = 89,517.54/x
  3. Step 3: Cross multiply
    157,490.35x = 217,355.13 × 89,517.54
  4. Step 4: Simplify right side
    157,490.35x = 19,457,096,543.98
  5. Step 5: Solve for x
    x = 19,457,096,543.98/157,490.35
  6. Step 6: Final answer
    x = 123,544.69

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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.