Home / 156,777.17-216,356.51-85,161.29

Finding the Fourth Proportional to 156,777.17, 216,356.51 and 85,161.29

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Solution

The fourth proportional to 156,777.17, 216,356.51 and 85,161.29 is: 117,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.17 : 216,356.51 = 85,161.29 : x
  2. Step 2: Convert to fraction form
    156,777.17/216,356.51 = 85,161.29/x
  3. Step 3: Cross multiply
    156,777.17x = 216,356.51 × 85,161.29
  4. Step 4: Simplify right side
    156,777.17x = 18,425,198,622.62
  5. Step 5: Solve for x
    x = 18,425,198,622.62/156,777.17
  6. Step 6: Final answer
    x = 117,524.76

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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.