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Finding the Fourth Proportional to 108,923.13, 150,289.34 and 65,901.55

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Solution

The fourth proportional to 108,923.13, 150,289.34 and 65,901.55 is: 90,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,923.13 : 150,289.34 = 65,901.55 : x
  2. Step 2: Convert to fraction form
    108,923.13/150,289.34 = 65,901.55/x
  3. Step 3: Cross multiply
    108,923.13x = 150,289.34 × 65,901.55
  4. Step 4: Simplify right side
    108,923.13x = 9,904,300,401.73
  5. Step 5: Solve for x
    x = 9,904,300,401.73/108,923.13
  6. Step 6: Final answer
    x = 90,929.27

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