Home / 185,272.11-255,668.67-100,387.35

Finding the Fourth Proportional to 185,272.11, 255,668.67 and 100,387.35

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Solution

The fourth proportional to 185,272.11, 255,668.67 and 100,387.35 is: 138,530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,272.11 : 255,668.67 = 100,387.35 : x
  2. Step 2: Convert to fraction form
    185,272.11/255,668.67 = 100,387.35/x
  3. Step 3: Cross multiply
    185,272.11x = 255,668.67 × 100,387.35
  4. Step 4: Simplify right side
    185,272.11x = 25,665,900,259.32
  5. Step 5: Solve for x
    x = 25,665,900,259.32/185,272.11
  6. Step 6: Final answer
    x = 138,530.84

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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.