Home / 185,143.64-255,499.04-100,260.80

Finding the Fourth Proportional to 185,143.64, 255,499.04 and 100,260.80

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Solution

The fourth proportional to 185,143.64, 255,499.04 and 100,260.80 is: 138,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,143.64 : 255,499.04 = 100,260.80 : x
  2. Step 2: Convert to fraction form
    185,143.64/255,499.04 = 100,260.80/x
  3. Step 3: Cross multiply
    185,143.64x = 255,499.04 × 100,260.80
  4. Step 4: Simplify right side
    185,143.64x = 25,616,538,149.63
  5. Step 5: Solve for x
    x = 25,616,538,149.63/185,143.64
  6. Step 6: Final answer
    x = 138,360.35

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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.