Home / 129,795.62-179,116.91-75,352.83

Finding the Fourth Proportional to 129,795.62, 179,116.91 and 75,352.83

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Solution

The fourth proportional to 129,795.62, 179,116.91 and 75,352.83 is: 103,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,795.62 : 179,116.91 = 75,352.83 : x
  2. Step 2: Convert to fraction form
    129,795.62/179,116.91 = 75,352.83/x
  3. Step 3: Cross multiply
    129,795.62x = 179,116.91 × 75,352.83
  4. Step 4: Simplify right side
    129,795.62x = 13,496,965,692.59
  5. Step 5: Solve for x
    x = 13,496,965,692.59/129,795.62
  6. Step 6: Final answer
    x = 103,986.30

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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.