Home / 82,488.26-123,109.38-74,516.64

Finding the Fourth Proportional to 82,488.26, 123,109.38 and 74,516.64

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Solution

The fourth proportional to 82,488.26, 123,109.38 and 74,516.64 is: 111,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,488.26 : 123,109.38 = 74,516.64 : x
  2. Step 2: Convert to fraction form
    82,488.26/123,109.38 = 74,516.64/x
  3. Step 3: Cross multiply
    82,488.26x = 123,109.38 × 74,516.64
  4. Step 4: Simplify right side
    82,488.26x = 9,173,697,350.08
  5. Step 5: Solve for x
    x = 9,173,697,350.08/82,488.26
  6. Step 6: Final answer
    x = 111,212.16

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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.