Home / 73,208.16-109,182.24-66,121.92

Finding the Fourth Proportional to 73,208.16, 109,182.24 and 66,121.92

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Solution

The fourth proportional to 73,208.16, 109,182.24 and 66,121.92 is: 98,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,208.16 : 109,182.24 = 66,121.92 : x
  2. Step 2: Convert to fraction form
    73,208.16/109,182.24 = 66,121.92/x
  3. Step 3: Cross multiply
    73,208.16x = 109,182.24 × 66,121.92
  4. Step 4: Simplify right side
    73,208.16x = 7,219,339,338.70
  5. Step 5: Solve for x
    x = 7,219,339,338.70/73,208.16
  6. Step 6: Final answer
    x = 98,613.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.