Home / 185,192.24-255,565.31-100,309.31

Finding the Fourth Proportional to 185,192.24, 255,565.31 and 100,309.31

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Solution

The fourth proportional to 185,192.24, 255,565.31 and 100,309.31 is: 138,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,192.24 : 255,565.31 = 100,309.31 : x
  2. Step 2: Convert to fraction form
    185,192.24/255,565.31 = 100,309.31/x
  3. Step 3: Cross multiply
    185,192.24x = 255,565.31 × 100,309.31
  4. Step 4: Simplify right side
    185,192.24x = 25,635,578,866.70
  5. Step 5: Solve for x
    x = 25,635,578,866.70/185,192.24
  6. Step 6: Final answer
    x = 138,426.85

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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.