Home / 129,763.68-179,061.21-75,307.38

Finding the Fourth Proportional to 129,763.68, 179,061.21 and 75,307.38

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Solution

The fourth proportional to 129,763.68, 179,061.21 and 75,307.38 is: 103,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,763.68 : 179,061.21 = 75,307.38 : x
  2. Step 2: Convert to fraction form
    129,763.68/179,061.21 = 75,307.38/x
  3. Step 3: Cross multiply
    129,763.68x = 179,061.21 × 75,307.38
  4. Step 4: Simplify right side
    129,763.68x = 13,484,630,584.73
  5. Step 5: Solve for x
    x = 13,484,630,584.73/129,763.68
  6. Step 6: Final answer
    x = 103,916.83

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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.