Home / 185,134.40-255,484.20-100,249.52

Finding the Fourth Proportional to 185,134.40, 255,484.20 and 100,249.52

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Solution

The fourth proportional to 185,134.40, 255,484.20 and 100,249.52 is: 138,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,134.40 : 255,484.20 = 100,249.52 : x
  2. Step 2: Convert to fraction form
    185,134.40/255,484.20 = 100,249.52/x
  3. Step 3: Cross multiply
    185,134.40x = 255,484.20 × 100,249.52
  4. Step 4: Simplify right side
    185,134.40x = 25,612,168,417.58
  5. Step 5: Solve for x
    x = 25,612,168,417.58/185,134.40
  6. Step 6: Final answer
    x = 138,343.65

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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.