Home / 108,629.40-162,944.10-82,385.40

Finding the Fourth Proportional to 108,629.40, 162,944.10 and 82,385.40

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Solution

The fourth proportional to 108,629.40, 162,944.10 and 82,385.40 is: 123,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,629.40 : 162,944.10 = 82,385.40 : x
  2. Step 2: Convert to fraction form
    108,629.40/162,944.10 = 82,385.40/x
  3. Step 3: Cross multiply
    108,629.40x = 162,944.10 × 82,385.40
  4. Step 4: Simplify right side
    108,629.40x = 13,424,214,856.14
  5. Step 5: Solve for x
    x = 13,424,214,856.14/108,629.40
  6. Step 6: Final answer
    x = 123,578.10

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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.