Home / 109,319.86-163,979.82-84,396.29

Finding the Fourth Proportional to 109,319.86, 163,979.82 and 84,396.29

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Solution

The fourth proportional to 109,319.86, 163,979.82 and 84,396.29 is: 126,594.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,319.86 : 163,979.82 = 84,396.29 : x
  2. Step 2: Convert to fraction form
    109,319.86/163,979.82 = 84,396.29/x
  3. Step 3: Cross multiply
    109,319.86x = 163,979.82 × 84,396.29
  4. Step 4: Simplify right side
    109,319.86x = 13,839,288,442.87
  5. Step 5: Solve for x
    x = 13,839,288,442.87/109,319.86
  6. Step 6: Final answer
    x = 126,594.46

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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.