Home / 185,143.72-255,498.54-100,260.88

Finding the Fourth Proportional to 185,143.72, 255,498.54 and 100,260.88

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Solution

The fourth proportional to 185,143.72, 255,498.54 and 100,260.88 is: 138,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,143.72 : 255,498.54 = 100,260.88 : x
  2. Step 2: Convert to fraction form
    185,143.72/255,498.54 = 100,260.88/x
  3. Step 3: Cross multiply
    185,143.72x = 255,498.54 × 100,260.88
  4. Step 4: Simplify right side
    185,143.72x = 25,616,508,459.12
  5. Step 5: Solve for x
    x = 25,616,508,459.12/185,143.72
  6. Step 6: Final answer
    x = 138,360.13

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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.