Home / 129,926.28-179,297.51-72,564.92

Finding the Fourth Proportional to 129,926.28, 179,297.51 and 72,564.92

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Solution

The fourth proportional to 129,926.28, 179,297.51 and 72,564.92 is: 100,139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,926.28 : 179,297.51 = 72,564.92 : x
  2. Step 2: Convert to fraction form
    129,926.28/179,297.51 = 72,564.92/x
  3. Step 3: Cross multiply
    129,926.28x = 179,297.51 × 72,564.92
  4. Step 4: Simplify right side
    129,926.28x = 13,010,709,469.35
  5. Step 5: Solve for x
    x = 13,010,709,469.35/129,926.28
  6. Step 6: Final answer
    x = 100,139.17

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1.5x scale

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.