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Finding the Fourth Proportional to 108,192.32, 149,288 and 60,443.20

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Solution

The fourth proportional to 108,192.32, 149,288 and 60,443.20 is: 83,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,192.32 : 149,288 = 60,443.20 : x
  2. Step 2: Convert to fraction form
    108,192.32/149,288 = 60,443.20/x
  3. Step 3: Cross multiply
    108,192.32x = 149,288 × 60,443.20
  4. Step 4: Simplify right side
    108,192.32x = 9,023,444,441.60
  5. Step 5: Solve for x
    x = 9,023,444,441.60/108,192.32
  6. Step 6: Final answer
    x = 83,401.89

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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.