Home / 185,143.96-255,498.28-100,260.76

Finding the Fourth Proportional to 185,143.96, 255,498.28 and 100,260.76

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Solution

The fourth proportional to 185,143.96, 255,498.28 and 100,260.76 is: 138,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,143.96 : 255,498.28 = 100,260.76 : x
  2. Step 2: Convert to fraction form
    185,143.96/255,498.28 = 100,260.76/x
  3. Step 3: Cross multiply
    185,143.96x = 255,498.28 × 100,260.76
  4. Step 4: Simplify right side
    185,143.96x = 25,616,451,731.49
  5. Step 5: Solve for x
    x = 25,616,451,731.49/185,143.96
  6. Step 6: Final answer
    x = 138,359.64

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1.5x scale

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.