Home / 156,981.18-235,466.55-68,234.79

Finding the Fourth Proportional to 156,981.18, 235,466.55 and 68,234.79

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Solution

The fourth proportional to 156,981.18, 235,466.55 and 68,234.79 is: 102,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.18 : 235,466.55 = 68,234.79 : x
  2. Step 2: Convert to fraction form
    156,981.18/235,466.55 = 68,234.79/x
  3. Step 3: Cross multiply
    156,981.18x = 235,466.55 × 68,234.79
  4. Step 4: Simplify right side
    156,981.18x = 16,067,010,591.27
  5. Step 5: Solve for x
    x = 16,067,010,591.27/156,981.18
  6. Step 6: Final answer
    x = 102,349.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.