Home / 157,766.62-217,726.79-86,153.30

Finding the Fourth Proportional to 157,766.62, 217,726.79 and 86,153.30

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Solution

The fourth proportional to 157,766.62, 217,726.79 and 86,153.30 is: 118,896.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,766.62 : 217,726.79 = 86,153.30 : x
  2. Step 2: Convert to fraction form
    157,766.62/217,726.79 = 86,153.30/x
  3. Step 3: Cross multiply
    157,766.62x = 217,726.79 × 86,153.30
  4. Step 4: Simplify right side
    157,766.62x = 18,757,881,456.91
  5. Step 5: Solve for x
    x = 18,757,881,456.91/157,766.62
  6. Step 6: Final answer
    x = 118,896.39

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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.