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Finding the Fourth Proportional to 108,550.30, 162,825.45 and 100,947.10

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Solution

The fourth proportional to 108,550.30, 162,825.45 and 100,947.10 is: 151,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,550.30 : 162,825.45 = 100,947.10 : x
  2. Step 2: Convert to fraction form
    108,550.30/162,825.45 = 100,947.10/x
  3. Step 3: Cross multiply
    108,550.30x = 162,825.45 × 100,947.10
  4. Step 4: Simplify right side
    108,550.30x = 16,436,756,983.70
  5. Step 5: Solve for x
    x = 16,436,756,983.70/108,550.30
  6. Step 6: Final answer
    x = 151,420.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.