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Finding the Fourth Proportional to 185,412.33, 255,866.72 and 100,529.19

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Solution

The fourth proportional to 185,412.33, 255,866.72 and 100,529.19 is: 138,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,412.33 : 255,866.72 = 100,529.19 : x
  2. Step 2: Convert to fraction form
    185,412.33/255,866.72 = 100,529.19/x
  3. Step 3: Cross multiply
    185,412.33x = 255,866.72 × 100,529.19
  4. Step 4: Simplify right side
    185,412.33x = 25,722,073,606.91
  5. Step 5: Solve for x
    x = 25,722,073,606.91/185,412.33
  6. Step 6: Final answer
    x = 138,729.03

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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.