Home / 129,947.71-179,327.82-70,331.71

Finding the Fourth Proportional to 129,947.71, 179,327.82 and 70,331.71

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Solution

The fourth proportional to 129,947.71, 179,327.82 and 70,331.71 is: 97,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,947.71 : 179,327.82 = 70,331.71 : x
  2. Step 2: Convert to fraction form
    129,947.71/179,327.82 = 70,331.71/x
  3. Step 3: Cross multiply
    129,947.71x = 179,327.82 × 70,331.71
  4. Step 4: Simplify right side
    129,947.71x = 12,612,432,231.17
  5. Step 5: Solve for x
    x = 12,612,432,231.17/129,947.71
  6. Step 6: Final answer
    x = 97,057.75

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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.