Home / 167,139.20-230,650.75-90,658.10

Finding the Fourth Proportional to 167,139.20, 230,650.75 and 90,658.10

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Solution

The fourth proportional to 167,139.20, 230,650.75 and 90,658.10 is: 125,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,139.20 : 230,650.75 = 90,658.10 : x
  2. Step 2: Convert to fraction form
    167,139.20/230,650.75 = 90,658.10/x
  3. Step 3: Cross multiply
    167,139.20x = 230,650.75 × 90,658.10
  4. Step 4: Simplify right side
    167,139.20x = 20,910,357,152.03
  5. Step 5: Solve for x
    x = 20,910,357,152.03/167,139.20
  6. Step 6: Final answer
    x = 125,107.44

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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.