Home / 129,828.12-179,171.10-73,218.84

Finding the Fourth Proportional to 129,828.12, 179,171.10 and 73,218.84

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Solution

The fourth proportional to 129,828.12, 179,171.10 and 73,218.84 is: 101,046.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.12 : 179,171.10 = 73,218.84 : x
  2. Step 2: Convert to fraction form
    129,828.12/179,171.10 = 73,218.84/x
  3. Step 3: Cross multiply
    129,828.12x = 179,171.10 × 73,218.84
  4. Step 4: Simplify right side
    129,828.12x = 13,118,700,103.52
  5. Step 5: Solve for x
    x = 13,118,700,103.52/129,828.12
  6. Step 6: Final answer
    x = 101,046.68

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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.