Home / 129,742.97-179,051.51-73,153.13

Finding the Fourth Proportional to 129,742.97, 179,051.51 and 73,153.13

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Solution

The fourth proportional to 129,742.97, 179,051.51 and 73,153.13 is: 100,954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,742.97 : 179,051.51 = 73,153.13 : x
  2. Step 2: Convert to fraction form
    129,742.97/179,051.51 = 73,153.13/x
  3. Step 3: Cross multiply
    129,742.97x = 179,051.51 × 73,153.13
  4. Step 4: Simplify right side
    129,742.97x = 13,098,177,675.35
  5. Step 5: Solve for x
    x = 13,098,177,675.35/129,742.97
  6. Step 6: Final answer
    x = 100,954.82

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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.