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Finding the Fourth Proportional to 108,281.63, 162,447.05 and 40,834.55

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Solution

The fourth proportional to 108,281.63, 162,447.05 and 40,834.55 is: 61,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,281.63 : 162,447.05 = 40,834.55 : x
  2. Step 2: Convert to fraction form
    108,281.63/162,447.05 = 40,834.55/x
  3. Step 3: Cross multiply
    108,281.63x = 162,447.05 × 40,834.55
  4. Step 4: Simplify right side
    108,281.63x = 6,633,452,693.78
  5. Step 5: Solve for x
    x = 6,633,452,693.78/108,281.63
  6. Step 6: Final answer
    x = 61,261.11

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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.