Home / 112,310.40-168,387.57-42,170.88

Finding the Fourth Proportional to 112,310.40, 168,387.57 and 42,170.88

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Solution

The fourth proportional to 112,310.40, 168,387.57 and 42,170.88 is: 63,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,310.40 : 168,387.57 = 42,170.88 : x
  2. Step 2: Convert to fraction form
    112,310.40/168,387.57 = 42,170.88/x
  3. Step 3: Cross multiply
    112,310.40x = 168,387.57 × 42,170.88
  4. Step 4: Simplify right side
    112,310.40x = 7,101,052,007.96
  5. Step 5: Solve for x
    x = 7,101,052,007.96/112,310.40
  6. Step 6: Final answer
    x = 63,227.02

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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.