Home / 129,922.74-179,242.74-76,187.88

Finding the Fourth Proportional to 129,922.74, 179,242.74 and 76,187.88

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Solution

The fourth proportional to 129,922.74, 179,242.74 and 76,187.88 is: 105,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,922.74 : 179,242.74 = 76,187.88 : x
  2. Step 2: Convert to fraction form
    129,922.74/179,242.74 = 76,187.88/x
  3. Step 3: Cross multiply
    129,922.74x = 179,242.74 × 76,187.88
  4. Step 4: Simplify right side
    129,922.74x = 13,656,124,365.99
  5. Step 5: Solve for x
    x = 13,656,124,365.99/129,922.74
  6. Step 6: Final answer
    x = 105,109.58

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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.