Home / 124,923.88-172,421.82-79,591.04

Finding the Fourth Proportional to 124,923.88, 172,421.82 and 79,591.04

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Solution

The fourth proportional to 124,923.88, 172,421.82 and 79,591.04 is: 109,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,923.88 : 172,421.82 = 79,591.04 : x
  2. Step 2: Convert to fraction form
    124,923.88/172,421.82 = 79,591.04/x
  3. Step 3: Cross multiply
    124,923.88x = 172,421.82 × 79,591.04
  4. Step 4: Simplify right side
    124,923.88x = 13,723,231,972.49
  5. Step 5: Solve for x
    x = 13,723,231,972.49/124,923.88
  6. Step 6: Final answer
    x = 109,852.75

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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.