Home / 156,922.78-216,558.18-88,939.90

Finding the Fourth Proportional to 156,922.78, 216,558.18 and 88,939.90

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Solution

The fourth proportional to 156,922.78, 216,558.18 and 88,939.90 is: 122,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,922.78 : 216,558.18 = 88,939.90 : x
  2. Step 2: Convert to fraction form
    156,922.78/216,558.18 = 88,939.90/x
  3. Step 3: Cross multiply
    156,922.78x = 216,558.18 × 88,939.90
  4. Step 4: Simplify right side
    156,922.78x = 19,260,662,873.38
  5. Step 5: Solve for x
    x = 19,260,662,873.38/156,922.78
  6. Step 6: Final answer
    x = 122,739.75

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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.