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Finding the Fourth Proportional to 108,663, 149,955.48 and 63,372.39

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Solution

The fourth proportional to 108,663, 149,955.48 and 63,372.39 is: 87,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663 : 149,955.48 = 63,372.39 : x
  2. Step 2: Convert to fraction form
    108,663/149,955.48 = 63,372.39/x
  3. Step 3: Cross multiply
    108,663x = 149,955.48 × 63,372.39
  4. Step 4: Simplify right side
    108,663x = 9,503,037,161.20
  5. Step 5: Solve for x
    x = 9,503,037,161.20/108,663
  6. Step 6: Final answer
    x = 87,454.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.