Home / 129,770.28-179,049.09-76,026.39

Finding the Fourth Proportional to 129,770.28, 179,049.09 and 76,026.39

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Solution

The fourth proportional to 129,770.28, 179,049.09 and 76,026.39 is: 104,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,770.28 : 179,049.09 = 76,026.39 : x
  2. Step 2: Convert to fraction form
    129,770.28/179,049.09 = 76,026.39/x
  3. Step 3: Cross multiply
    129,770.28x = 179,049.09 × 76,026.39
  4. Step 4: Simplify right side
    129,770.28x = 13,612,455,945.49
  5. Step 5: Solve for x
    x = 13,612,455,945.49/129,770.28
  6. Step 6: Final answer
    x = 104,896.56

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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.