Home / 130,338.88-179,895.78-79,368.52

Finding the Fourth Proportional to 130,338.88, 179,895.78 and 79,368.52

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Solution

The fourth proportional to 130,338.88, 179,895.78 and 79,368.52 is: 109,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,338.88 : 179,895.78 = 79,368.52 : x
  2. Step 2: Convert to fraction form
    130,338.88/179,895.78 = 79,368.52/x
  3. Step 3: Cross multiply
    130,338.88x = 179,895.78 × 79,368.52
  4. Step 4: Simplify right side
    130,338.88x = 14,278,061,812.85
  5. Step 5: Solve for x
    x = 14,278,061,812.85/130,338.88
  6. Step 6: Final answer
    x = 109,545.68

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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.