Home / 156,765.75-216,337.10-85,144.23

Finding the Fourth Proportional to 156,765.75, 216,337.10 and 85,144.23

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Solution

The fourth proportional to 156,765.75, 216,337.10 and 85,144.23 is: 117,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,765.75 : 216,337.10 = 85,144.23 : x
  2. Step 2: Convert to fraction form
    156,765.75/216,337.10 = 85,144.23/x
  3. Step 3: Cross multiply
    156,765.75x = 216,337.10 × 85,144.23
  4. Step 4: Simplify right side
    156,765.75x = 18,419,855,374.21
  5. Step 5: Solve for x
    x = 18,419,855,374.21/156,765.75
  6. Step 6: Final answer
    x = 117,499.24

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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.