Home / 129,776.38-179,095.69-75,324.46

Finding the Fourth Proportional to 129,776.38, 179,095.69 and 75,324.46

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Solution

The fourth proportional to 129,776.38, 179,095.69 and 75,324.46 is: 103,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,776.38 : 179,095.69 = 75,324.46 : x
  2. Step 2: Convert to fraction form
    129,776.38/179,095.69 = 75,324.46/x
  3. Step 3: Cross multiply
    129,776.38x = 179,095.69 × 75,324.46
  4. Step 4: Simplify right side
    129,776.38x = 13,490,286,137.58
  5. Step 5: Solve for x
    x = 13,490,286,137.58/129,776.38
  6. Step 6: Final answer
    x = 103,950.24

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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.