Home / 107,142.05-160,739.85-75,613.65

Finding the Fourth Proportional to 107,142.05, 160,739.85 and 75,613.65

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Solution

The fourth proportional to 107,142.05, 160,739.85 and 75,613.65 is: 113,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,142.05 : 160,739.85 = 75,613.65 : x
  2. Step 2: Convert to fraction form
    107,142.05/160,739.85 = 75,613.65/x
  3. Step 3: Cross multiply
    107,142.05x = 160,739.85 × 75,613.65
  4. Step 4: Simplify right side
    107,142.05x = 12,154,126,758.95
  5. Step 5: Solve for x
    x = 12,154,126,758.95/107,142.05
  6. Step 6: Final answer
    x = 113,439.38

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1.5x scale

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.