Home / 129,727.84-179,017.46-73,135.57

Finding the Fourth Proportional to 129,727.84, 179,017.46 and 73,135.57

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Solution

The fourth proportional to 129,727.84, 179,017.46 and 73,135.57 is: 100,923.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727.84 : 179,017.46 = 73,135.57 : x
  2. Step 2: Convert to fraction form
    129,727.84/179,017.46 = 73,135.57/x
  3. Step 3: Cross multiply
    129,727.84x = 179,017.46 × 73,135.57
  4. Step 4: Simplify right side
    129,727.84x = 13,092,543,264.80
  5. Step 5: Solve for x
    x = 13,092,543,264.80/129,727.84
  6. Step 6: Final answer
    x = 100,923.16

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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.