Home / 185,174.72-255,541.32-100,291.88

Finding the Fourth Proportional to 185,174.72, 255,541.32 and 100,291.88

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Solution

The fourth proportional to 185,174.72, 255,541.32 and 100,291.88 is: 138,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,174.72 : 255,541.32 = 100,291.88 : x
  2. Step 2: Convert to fraction form
    185,174.72/255,541.32 = 100,291.88/x
  3. Step 3: Cross multiply
    185,174.72x = 255,541.32 × 100,291.88
  4. Step 4: Simplify right side
    185,174.72x = 25,628,719,400.48
  5. Step 5: Solve for x
    x = 25,628,719,400.48/185,174.72
  6. Step 6: Final answer
    x = 138,402.91

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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.