Home / 156,757.76-216,327.27-85,139.18

Finding the Fourth Proportional to 156,757.76, 216,327.27 and 85,139.18

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Solution

The fourth proportional to 156,757.76, 216,327.27 and 85,139.18 is: 117,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,757.76 : 216,327.27 = 85,139.18 : x
  2. Step 2: Convert to fraction form
    156,757.76/216,327.27 = 85,139.18/x
  3. Step 3: Cross multiply
    156,757.76x = 216,327.27 × 85,139.18
  4. Step 4: Simplify right side
    156,757.76x = 18,417,926,379.44
  5. Step 5: Solve for x
    x = 18,417,926,379.44/156,757.76
  6. Step 6: Final answer
    x = 117,492.92

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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.