Home / 156,942.10-235,443.44-66,983.50

Finding the Fourth Proportional to 156,942.10, 235,443.44 and 66,983.50

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Solution

The fourth proportional to 156,942.10, 235,443.44 and 66,983.50 is: 100,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942.10 : 235,443.44 = 66,983.50 : x
  2. Step 2: Convert to fraction form
    156,942.10/235,443.44 = 66,983.50/x
  3. Step 3: Cross multiply
    156,942.10x = 235,443.44 × 66,983.50
  4. Step 4: Simplify right side
    156,942.10x = 15,770,825,663.24
  5. Step 5: Solve for x
    x = 15,770,825,663.24/156,942.10
  6. Step 6: Final answer
    x = 100,488.18

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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.