Home / 157,734.68-217,665.60-86,100.86

Finding the Fourth Proportional to 157,734.68, 217,665.60 and 86,100.86

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Solution

The fourth proportional to 157,734.68, 217,665.60 and 86,100.86 is: 118,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,734.68 : 217,665.60 = 86,100.86 : x
  2. Step 2: Convert to fraction form
    157,734.68/217,665.60 = 86,100.86/x
  3. Step 3: Cross multiply
    157,734.68x = 217,665.60 × 86,100.86
  4. Step 4: Simplify right side
    157,734.68x = 18,741,195,352.42
  5. Step 5: Solve for x
    x = 18,741,195,352.42/157,734.68
  6. Step 6: Final answer
    x = 118,814.68

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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.