Home / 185,319.06-255,740.40-100,436.10

Finding the Fourth Proportional to 185,319.06, 255,740.40 and 100,436.10

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Solution

The fourth proportional to 185,319.06, 255,740.40 and 100,436.10 is: 138,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,319.06 : 255,740.40 = 100,436.10 : x
  2. Step 2: Convert to fraction form
    185,319.06/255,740.40 = 100,436.10/x
  3. Step 3: Cross multiply
    185,319.06x = 255,740.40 × 100,436.10
  4. Step 4: Simplify right side
    185,319.06x = 25,685,568,388.44
  5. Step 5: Solve for x
    x = 25,685,568,388.44/185,319.06
  6. Step 6: Final answer
    x = 138,601.87

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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.