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Finding the Fourth Proportional to 162,003, 243,017.19 and 43,672.53

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Solution

The fourth proportional to 162,003, 243,017.19 and 43,672.53 is: 65,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003 : 243,017.19 = 43,672.53 : x
  2. Step 2: Convert to fraction form
    162,003/243,017.19 = 43,672.53/x
  3. Step 3: Cross multiply
    162,003x = 243,017.19 × 43,672.53
  4. Step 4: Simplify right side
    162,003x = 10,613,175,520.79
  5. Step 5: Solve for x
    x = 10,613,175,520.79/162,003
  6. Step 6: Final answer
    x = 65,512.22

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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.