Home / 124,859.59-172,317.49-71,161.90

Finding the Fourth Proportional to 124,859.59, 172,317.49 and 71,161.90

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Solution

The fourth proportional to 124,859.59, 172,317.49 and 71,161.90 is: 98,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,859.59 : 172,317.49 = 71,161.90 : x
  2. Step 2: Convert to fraction form
    124,859.59/172,317.49 = 71,161.90/x
  3. Step 3: Cross multiply
    124,859.59x = 172,317.49 × 71,161.90
  4. Step 4: Simplify right side
    124,859.59x = 12,262,440,694.61
  5. Step 5: Solve for x
    x = 12,262,440,694.61/124,859.59
  6. Step 6: Final answer
    x = 98,209.84

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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.