Home / 129,949.59-179,331.93-76,235.52

Finding the Fourth Proportional to 129,949.59, 179,331.93 and 76,235.52

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Solution

The fourth proportional to 129,949.59, 179,331.93 and 76,235.52 is: 105,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,949.59 : 179,331.93 = 76,235.52 : x
  2. Step 2: Convert to fraction form
    129,949.59/179,331.93 = 76,235.52/x
  3. Step 3: Cross multiply
    129,949.59x = 179,331.93 × 76,235.52
  4. Step 4: Simplify right side
    129,949.59x = 13,671,462,936.15
  5. Step 5: Solve for x
    x = 13,671,462,936.15/129,949.59
  6. Step 6: Final answer
    x = 105,205.90

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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.