Home / 108,009.10-162,013.65-103,635.10

Finding the Fourth Proportional to 108,009.10, 162,013.65 and 103,635.10

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Solution

The fourth proportional to 108,009.10, 162,013.65 and 103,635.10 is: 155,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,009.10 : 162,013.65 = 103,635.10 : x
  2. Step 2: Convert to fraction form
    108,009.10/162,013.65 = 103,635.10/x
  3. Step 3: Cross multiply
    108,009.10x = 162,013.65 × 103,635.10
  4. Step 4: Simplify right side
    108,009.10x = 16,790,300,819.12
  5. Step 5: Solve for x
    x = 16,790,300,819.12/108,009.10
  6. Step 6: Final answer
    x = 155,452.65

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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.