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Finding the Fourth Proportional to 108,443.66, 149,653 and 63,148.04

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Solution

The fourth proportional to 108,443.66, 149,653 and 63,148.04 is: 87,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,443.66 : 149,653 = 63,148.04 : x
  2. Step 2: Convert to fraction form
    108,443.66/149,653 = 63,148.04/x
  3. Step 3: Cross multiply
    108,443.66x = 149,653 × 63,148.04
  4. Step 4: Simplify right side
    108,443.66x = 9,450,293,630.12
  5. Step 5: Solve for x
    x = 9,450,293,630.12/108,443.66
  6. Step 6: Final answer
    x = 87,144.73

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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.