Home / 162,821.10-243,811.02-112,375.83

Finding the Fourth Proportional to 162,821.10, 243,811.02 and 112,375.83

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Solution

The fourth proportional to 162,821.10, 243,811.02 and 112,375.83 is: 168,273.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,821.10 : 243,811.02 = 112,375.83 : x
  2. Step 2: Convert to fraction form
    162,821.10/243,811.02 = 112,375.83/x
  3. Step 3: Cross multiply
    162,821.10x = 243,811.02 × 112,375.83
  4. Step 4: Simplify right side
    162,821.10x = 27,398,465,735.65
  5. Step 5: Solve for x
    x = 27,398,465,735.65/162,821.10
  6. Step 6: Final answer
    x = 168,273.43

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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.