Home / 129,952.66-179,336.16-76,238.59

Finding the Fourth Proportional to 129,952.66, 179,336.16 and 76,238.59

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Solution

The fourth proportional to 129,952.66, 179,336.16 and 76,238.59 is: 105,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952.66 : 179,336.16 = 76,238.59 : x
  2. Step 2: Convert to fraction form
    129,952.66/179,336.16 = 76,238.59/x
  3. Step 3: Cross multiply
    129,952.66x = 179,336.16 × 76,238.59
  4. Step 4: Simplify right side
    129,952.66x = 13,672,335,077.73
  5. Step 5: Solve for x
    x = 13,672,335,077.73/129,952.66
  6. Step 6: Final answer
    x = 105,210.13

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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.