Home / 108,004.10-162,006.15-81,176.90

Finding the Fourth Proportional to 108,004.10, 162,006.15 and 81,176.90

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Solution

The fourth proportional to 108,004.10, 162,006.15 and 81,176.90 is: 121,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,004.10 : 162,006.15 = 81,176.90 : x
  2. Step 2: Convert to fraction form
    108,004.10/162,006.15 = 81,176.90/x
  3. Step 3: Cross multiply
    108,004.10x = 162,006.15 × 81,176.90
  4. Step 4: Simplify right side
    108,004.10x = 13,151,157,037.94
  5. Step 5: Solve for x
    x = 13,151,157,037.94/108,004.10
  6. Step 6: Final answer
    x = 121,765.35

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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.