Home / 157,644.40-217,553.89-86,029.04

Finding the Fourth Proportional to 157,644.40, 217,553.89 and 86,029.04

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Solution

The fourth proportional to 157,644.40, 217,553.89 and 86,029.04 is: 118,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,644.40 : 217,553.89 = 86,029.04 : x
  2. Step 2: Convert to fraction form
    157,644.40/217,553.89 = 86,029.04/x
  3. Step 3: Cross multiply
    157,644.40x = 217,553.89 × 86,029.04
  4. Step 4: Simplify right side
    157,644.40x = 18,715,952,304.97
  5. Step 5: Solve for x
    x = 18,715,952,304.97/157,644.40
  6. Step 6: Final answer
    x = 118,722.60

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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.