Home / 129,314.92-178,427.84-75,589.54

Finding the Fourth Proportional to 129,314.92, 178,427.84 and 75,589.54

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Solution

The fourth proportional to 129,314.92, 178,427.84 and 75,589.54 is: 104,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,314.92 : 178,427.84 = 75,589.54 : x
  2. Step 2: Convert to fraction form
    129,314.92/178,427.84 = 75,589.54/x
  3. Step 3: Cross multiply
    129,314.92x = 178,427.84 × 75,589.54
  4. Step 4: Simplify right side
    129,314.92x = 13,487,278,348.79
  5. Step 5: Solve for x
    x = 13,487,278,348.79/129,314.92
  6. Step 6: Final answer
    x = 104,297.93

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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.