Home / 157,734.42-217,673.91-86,115.03

Finding the Fourth Proportional to 157,734.42, 217,673.91 and 86,115.03

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Solution

The fourth proportional to 157,734.42, 217,673.91 and 86,115.03 is: 118,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,734.42 : 217,673.91 = 86,115.03 : x
  2. Step 2: Convert to fraction form
    157,734.42/217,673.91 = 86,115.03/x
  3. Step 3: Cross multiply
    157,734.42x = 217,673.91 × 86,115.03
  4. Step 4: Simplify right side
    157,734.42x = 18,744,995,289.87
  5. Step 5: Solve for x
    x = 18,744,995,289.87/157,734.42
  6. Step 6: Final answer
    x = 118,838.97

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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.