Home / 112,204.20-168,695.10-109,871.40

Finding the Fourth Proportional to 112,204.20, 168,695.10 and 109,871.40

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Solution

The fourth proportional to 112,204.20, 168,695.10 and 109,871.40 is: 165,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,204.20 : 168,695.10 = 109,871.40 : x
  2. Step 2: Convert to fraction form
    112,204.20/168,695.10 = 109,871.40/x
  3. Step 3: Cross multiply
    112,204.20x = 168,695.10 × 109,871.40
  4. Step 4: Simplify right side
    112,204.20x = 18,534,766,810.14
  5. Step 5: Solve for x
    x = 18,534,766,810.14/112,204.20
  6. Step 6: Final answer
    x = 165,187.82

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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.