Home / 129,444.87-193,751.78-69,389.85

Finding the Fourth Proportional to 129,444.87, 193,751.78 and 69,389.85

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Solution

The fourth proportional to 129,444.87, 193,751.78 and 69,389.85 is: 103,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,444.87 : 193,751.78 = 69,389.85 : x
  2. Step 2: Convert to fraction form
    129,444.87/193,751.78 = 69,389.85/x
  3. Step 3: Cross multiply
    129,444.87x = 193,751.78 × 69,389.85
  4. Step 4: Simplify right side
    129,444.87x = 13,444,406,604.48
  5. Step 5: Solve for x
    x = 13,444,406,604.48/129,444.87
  6. Step 6: Final answer
    x = 103,862.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.