Home / 129,947.54-179,327.67-70,331.54

Finding the Fourth Proportional to 129,947.54, 179,327.67 and 70,331.54

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Solution

The fourth proportional to 129,947.54, 179,327.67 and 70,331.54 is: 97,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,947.54 : 179,327.67 = 70,331.54 : x
  2. Step 2: Convert to fraction form
    129,947.54/179,327.67 = 70,331.54/x
  3. Step 3: Cross multiply
    129,947.54x = 179,327.67 × 70,331.54
  4. Step 4: Simplify right side
    129,947.54x = 12,612,391,195.71
  5. Step 5: Solve for x
    x = 12,612,391,195.71/129,947.54
  6. Step 6: Final answer
    x = 97,057.56

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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.