Home / 157,711.10-217,637.87-86,092.34

Finding the Fourth Proportional to 157,711.10, 217,637.87 and 86,092.34

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Solution

The fourth proportional to 157,711.10, 217,637.87 and 86,092.34 is: 118,805.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,711.10 : 217,637.87 = 86,092.34 : x
  2. Step 2: Convert to fraction form
    157,711.10/217,637.87 = 86,092.34/x
  3. Step 3: Cross multiply
    157,711.10x = 217,637.87 × 86,092.34
  4. Step 4: Simplify right side
    157,711.10x = 18,736,951,982.26
  5. Step 5: Solve for x
    x = 18,736,951,982.26/157,711.10
  6. Step 6: Final answer
    x = 118,805.54

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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.