Home / 156,939.80-235,276.94-68,126.52

Finding the Fourth Proportional to 156,939.80, 235,276.94 and 68,126.52

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Solution

The fourth proportional to 156,939.80, 235,276.94 and 68,126.52 is: 102,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,939.80 : 235,276.94 = 68,126.52 : x
  2. Step 2: Convert to fraction form
    156,939.80/235,276.94 = 68,126.52/x
  3. Step 3: Cross multiply
    156,939.80x = 235,276.94 × 68,126.52
  4. Step 4: Simplify right side
    156,939.80x = 16,028,599,158.45
  5. Step 5: Solve for x
    x = 16,028,599,158.45/156,939.80
  6. Step 6: Final answer
    x = 102,132.15

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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.