Home / 129,833.64-179,184.06-76,120.92

Finding the Fourth Proportional to 129,833.64, 179,184.06 and 76,120.92

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Solution

The fourth proportional to 129,833.64, 179,184.06 and 76,120.92 is: 105,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,833.64 : 179,184.06 = 76,120.92 : x
  2. Step 2: Convert to fraction form
    129,833.64/179,184.06 = 76,120.92/x
  3. Step 3: Cross multiply
    129,833.64x = 179,184.06 × 76,120.92
  4. Step 4: Simplify right side
    129,833.64x = 13,639,655,496.54
  5. Step 5: Solve for x
    x = 13,639,655,496.54/129,833.64
  6. Step 6: Final answer
    x = 105,054.86

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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.