Home / 129,792.68-179,194.98-99,519.82

Finding the Fourth Proportional to 129,792.68, 179,194.98 and 99,519.82

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Solution

The fourth proportional to 129,792.68, 179,194.98 and 99,519.82 is: 137,399.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,792.68 : 179,194.98 = 99,519.82 : x
  2. Step 2: Convert to fraction form
    129,792.68/179,194.98 = 99,519.82/x
  3. Step 3: Cross multiply
    129,792.68x = 179,194.98 × 99,519.82
  4. Step 4: Simplify right side
    129,792.68x = 17,833,452,154.50
  5. Step 5: Solve for x
    x = 17,833,452,154.50/129,792.68
  6. Step 6: Final answer
    x = 137,399.52

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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.