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Finding the Fourth Proportional to 108,008.10, 162,012.15 and 103,634.10

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Solution

The fourth proportional to 108,008.10, 162,012.15 and 103,634.10 is: 155,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,008.10 : 162,012.15 = 103,634.10 : x
  2. Step 2: Convert to fraction form
    108,008.10/162,012.15 = 103,634.10/x
  3. Step 3: Cross multiply
    108,008.10x = 162,012.15 × 103,634.10
  4. Step 4: Simplify right side
    108,008.10x = 16,789,983,354.32
  5. Step 5: Solve for x
    x = 16,789,983,354.32/108,008.10
  6. Step 6: Final answer
    x = 155,451.15

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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.