Home / 129,763.42-179,073.66-76,037.74

Finding the Fourth Proportional to 129,763.42, 179,073.66 and 76,037.74

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Solution

The fourth proportional to 129,763.42, 179,073.66 and 76,037.74 is: 104,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,763.42 : 179,073.66 = 76,037.74 : x
  2. Step 2: Convert to fraction form
    129,763.42/179,073.66 = 76,037.74/x
  3. Step 3: Cross multiply
    129,763.42x = 179,073.66 × 76,037.74
  4. Step 4: Simplify right side
    129,763.42x = 13,616,356,399.93
  5. Step 5: Solve for x
    x = 13,616,356,399.93/129,763.42
  6. Step 6: Final answer
    x = 104,932.16

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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.