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Finding the Fourth Proportional to 108,012.96, 149,058 and 60,269.40

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Solution

The fourth proportional to 108,012.96, 149,058 and 60,269.40 is: 83,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,012.96 : 149,058 = 60,269.40 : x
  2. Step 2: Convert to fraction form
    108,012.96/149,058 = 60,269.40/x
  3. Step 3: Cross multiply
    108,012.96x = 149,058 × 60,269.40
  4. Step 4: Simplify right side
    108,012.96x = 8,983,636,225.20
  5. Step 5: Solve for x
    x = 8,983,636,225.20/108,012.96
  6. Step 6: Final answer
    x = 83,171.84

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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.