Home / 192,859.20-266,142.72-107,979.36

Finding the Fourth Proportional to 192,859.20, 266,142.72 and 107,979.36

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Solution

The fourth proportional to 192,859.20, 266,142.72 and 107,979.36 is: 149,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,859.20 : 266,142.72 = 107,979.36 : x
  2. Step 2: Convert to fraction form
    192,859.20/266,142.72 = 107,979.36/x
  3. Step 3: Cross multiply
    192,859.20x = 266,142.72 × 107,979.36
  4. Step 4: Simplify right side
    192,859.20x = 28,737,920,574.26
  5. Step 5: Solve for x
    x = 28,737,920,574.26/192,859.20
  6. Step 6: Final answer
    x = 149,009.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.