Home / 108,380.16-149,575.68-87,229.44

Finding the Fourth Proportional to 108,380.16, 149,575.68 and 87,229.44

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Solution

The fourth proportional to 108,380.16, 149,575.68 and 87,229.44 is: 120,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,380.16 : 149,575.68 = 87,229.44 : x
  2. Step 2: Convert to fraction form
    108,380.16/149,575.68 = 87,229.44/x
  3. Step 3: Cross multiply
    108,380.16x = 149,575.68 × 87,229.44
  4. Step 4: Simplify right side
    108,380.16x = 13,047,402,804.02
  5. Step 5: Solve for x
    x = 13,047,402,804.02/108,380.16
  6. Step 6: Final answer
    x = 120,385.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.