Home / 156,942.86-216,585.42-85,327.70

Finding the Fourth Proportional to 156,942.86, 216,585.42 and 85,327.70

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Solution

The fourth proportional to 156,942.86, 216,585.42 and 85,327.70 is: 117,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942.86 : 216,585.42 = 85,327.70 : x
  2. Step 2: Convert to fraction form
    156,942.86/216,585.42 = 85,327.70/x
  3. Step 3: Cross multiply
    156,942.86x = 216,585.42 × 85,327.70
  4. Step 4: Simplify right side
    156,942.86x = 18,480,735,742.13
  5. Step 5: Solve for x
    x = 18,480,735,742.13/156,942.86
  6. Step 6: Final answer
    x = 117,754.55

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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.