Home / 185,295.20-255,708.24-100,412.40

Finding the Fourth Proportional to 185,295.20, 255,708.24 and 100,412.40

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Solution

The fourth proportional to 185,295.20, 255,708.24 and 100,412.40 is: 138,569.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,295.20 : 255,708.24 = 100,412.40 : x
  2. Step 2: Convert to fraction form
    185,295.20/255,708.24 = 100,412.40/x
  3. Step 3: Cross multiply
    185,295.20x = 255,708.24 × 100,412.40
  4. Step 4: Simplify right side
    185,295.20x = 25,676,278,078.18
  5. Step 5: Solve for x
    x = 25,676,278,078.18/185,295.20
  6. Step 6: Final answer
    x = 138,569.58

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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.