Home / 185,143.52-255,497.64-100,260.56

Finding the Fourth Proportional to 185,143.52, 255,497.64 and 100,260.56

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Solution

The fourth proportional to 185,143.52, 255,497.64 and 100,260.56 is: 138,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,143.52 : 255,497.64 = 100,260.56 : x
  2. Step 2: Convert to fraction form
    185,143.52/255,497.64 = 100,260.56/x
  3. Step 3: Cross multiply
    185,143.52x = 255,497.64 × 100,260.56
  4. Step 4: Simplify right side
    185,143.52x = 25,616,336,465.08
  5. Step 5: Solve for x
    x = 25,616,336,465.08/185,143.52
  6. Step 6: Final answer
    x = 138,359.35

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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.