Home / 129,950.96-179,333.84-76,236.90

Finding the Fourth Proportional to 129,950.96, 179,333.84 and 76,236.90

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Solution

The fourth proportional to 129,950.96, 179,333.84 and 76,236.90 is: 105,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.96 : 179,333.84 = 76,236.90 : x
  2. Step 2: Convert to fraction form
    129,950.96/179,333.84 = 76,236.90/x
  3. Step 3: Cross multiply
    129,950.96x = 179,333.84 × 76,236.90
  4. Step 4: Simplify right side
    129,950.96x = 13,671,856,026.70
  5. Step 5: Solve for x
    x = 13,671,856,026.70/129,950.96
  6. Step 6: Final answer
    x = 105,207.81

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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.