Home / 156,697.68-216,241.56-85,076.25

Finding the Fourth Proportional to 156,697.68, 216,241.56 and 85,076.25

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Solution

The fourth proportional to 156,697.68, 216,241.56 and 85,076.25 is: 117,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,697.68 : 216,241.56 = 85,076.25 : x
  2. Step 2: Convert to fraction form
    156,697.68/216,241.56 = 85,076.25/x
  3. Step 3: Cross multiply
    156,697.68x = 216,241.56 × 85,076.25
  4. Step 4: Simplify right side
    156,697.68x = 18,397,021,018.95
  5. Step 5: Solve for x
    x = 18,397,021,018.95/156,697.68
  6. Step 6: Final answer
    x = 117,404.55

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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.