Home / 124,867.52-172,317.53-79,535.80

Finding the Fourth Proportional to 124,867.52, 172,317.53 and 79,535.80

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Solution

The fourth proportional to 124,867.52, 172,317.53 and 79,535.80 is: 109,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,867.52 : 172,317.53 = 79,535.80 : x
  2. Step 2: Convert to fraction form
    124,867.52/172,317.53 = 79,535.80/x
  3. Step 3: Cross multiply
    124,867.52x = 172,317.53 × 79,535.80
  4. Step 4: Simplify right side
    124,867.52x = 13,705,412,602.57
  5. Step 5: Solve for x
    x = 13,705,412,602.57/124,867.52
  6. Step 6: Final answer
    x = 109,759.63

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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.