Home / 156,718.20-235,112.76-51,538.08

Finding the Fourth Proportional to 156,718.20, 235,112.76 and 51,538.08

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Solution

The fourth proportional to 156,718.20, 235,112.76 and 51,538.08 is: 77,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,718.20 : 235,112.76 = 51,538.08 : x
  2. Step 2: Convert to fraction form
    156,718.20/235,112.76 = 51,538.08/x
  3. Step 3: Cross multiply
    156,718.20x = 235,112.76 × 51,538.08
  4. Step 4: Simplify right side
    156,718.20x = 12,117,260,233.90
  5. Step 5: Solve for x
    x = 12,117,260,233.90/156,718.20
  6. Step 6: Final answer
    x = 77,318.78

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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.