Home / 129,947.88-179,328.62-70,331.88

Finding the Fourth Proportional to 129,947.88, 179,328.62 and 70,331.88

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Solution

The fourth proportional to 129,947.88, 179,328.62 and 70,331.88 is: 97,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,947.88 : 179,328.62 = 70,331.88 : x
  2. Step 2: Convert to fraction form
    129,947.88/179,328.62 = 70,331.88/x
  3. Step 3: Cross multiply
    129,947.88x = 179,328.62 × 70,331.88
  4. Step 4: Simplify right side
    129,947.88x = 12,612,518,982.41
  5. Step 5: Solve for x
    x = 12,612,518,982.41/129,947.88
  6. Step 6: Final answer
    x = 97,058.29

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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.