Home / 162,318.03-243,532.40-87,445.85

Finding the Fourth Proportional to 162,318.03, 243,532.40 and 87,445.85

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Solution

The fourth proportional to 162,318.03, 243,532.40 and 87,445.85 is: 131,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,318.03 : 243,532.40 = 87,445.85 : x
  2. Step 2: Convert to fraction form
    162,318.03/243,532.40 = 87,445.85/x
  3. Step 3: Cross multiply
    162,318.03x = 243,532.40 × 87,445.85
  4. Step 4: Simplify right side
    162,318.03x = 21,295,898,366.39
  5. Step 5: Solve for x
    x = 21,295,898,366.39/162,318.03
  6. Step 6: Final answer
    x = 131,198.60

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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.