Home / 112,043.20-167,678.10-69,331.12

Finding the Fourth Proportional to 112,043.20, 167,678.10 and 69,331.12

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Solution

The fourth proportional to 112,043.20, 167,678.10 and 69,331.12 is: 103,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,043.20 : 167,678.10 = 69,331.12 : x
  2. Step 2: Convert to fraction form
    112,043.20/167,678.10 = 69,331.12/x
  3. Step 3: Cross multiply
    112,043.20x = 167,678.10 × 69,331.12
  4. Step 4: Simplify right side
    112,043.20x = 11,625,310,472.47
  5. Step 5: Solve for x
    x = 11,625,310,472.47/112,043.20
  6. Step 6: Final answer
    x = 103,757.39

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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.