Home / 78,214.16-107,535.87-69,634.64

Finding the Fourth Proportional to 78,214.16, 107,535.87 and 69,634.64

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Solution

The fourth proportional to 78,214.16, 107,535.87 and 69,634.64 is: 95,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,214.16 : 107,535.87 = 69,634.64 : x
  2. Step 2: Convert to fraction form
    78,214.16/107,535.87 = 69,634.64/x
  3. Step 3: Cross multiply
    78,214.16x = 107,535.87 × 69,634.64
  4. Step 4: Simplify right side
    78,214.16x = 7,488,221,594.54
  5. Step 5: Solve for x
    x = 7,488,221,594.54/78,214.16
  6. Step 6: Final answer
    x = 95,739.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.