Home / 185,191.23-255,563.91-100,308.32

Finding the Fourth Proportional to 185,191.23, 255,563.91 and 100,308.32

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Solution

The fourth proportional to 185,191.23, 255,563.91 and 100,308.32 is: 138,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,191.23 : 255,563.91 = 100,308.32 : x
  2. Step 2: Convert to fraction form
    185,191.23/255,563.91 = 100,308.32/x
  3. Step 3: Cross multiply
    185,191.23x = 255,563.91 × 100,308.32
  4. Step 4: Simplify right side
    185,191.23x = 25,635,185,186.91
  5. Step 5: Solve for x
    x = 25,635,185,186.91/185,191.23
  6. Step 6: Final answer
    x = 138,425.48

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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.