Home / 104,934.15-157,343.51-71,691.75

Finding the Fourth Proportional to 104,934.15, 157,343.51 and 71,691.75

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Solution

The fourth proportional to 104,934.15, 157,343.51 and 71,691.75 is: 107,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,934.15 : 157,343.51 = 71,691.75 : x
  2. Step 2: Convert to fraction form
    104,934.15/157,343.51 = 71,691.75/x
  3. Step 3: Cross multiply
    104,934.15x = 157,343.51 × 71,691.75
  4. Step 4: Simplify right side
    104,934.15x = 11,280,231,762.27
  5. Step 5: Solve for x
    x = 11,280,231,762.27/104,934.15
  6. Step 6: Final answer
    x = 107,498.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.