Home / 185,129.43-255,478.15-100,246.48

Finding the Fourth Proportional to 185,129.43, 255,478.15 and 100,246.48

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Solution

The fourth proportional to 185,129.43, 255,478.15 and 100,246.48 is: 138,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,129.43 : 255,478.15 = 100,246.48 : x
  2. Step 2: Convert to fraction form
    185,129.43/255,478.15 = 100,246.48/x
  3. Step 3: Cross multiply
    185,129.43x = 255,478.15 × 100,246.48
  4. Step 4: Simplify right side
    185,129.43x = 25,610,785,254.41
  5. Step 5: Solve for x
    x = 25,610,785,254.41/185,129.43
  6. Step 6: Final answer
    x = 138,339.89

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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.