Home / 185,171.24-255,535.89-100,288.10

Finding the Fourth Proportional to 185,171.24, 255,535.89 and 100,288.10

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Solution

The fourth proportional to 185,171.24, 255,535.89 and 100,288.10 is: 138,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,171.24 : 255,535.89 = 100,288.10 : x
  2. Step 2: Convert to fraction form
    185,171.24/255,535.89 = 100,288.10/x
  3. Step 3: Cross multiply
    185,171.24x = 255,535.89 × 100,288.10
  4. Step 4: Simplify right side
    185,171.24x = 25,627,208,889.91
  5. Step 5: Solve for x
    x = 25,627,208,889.91/185,171.24
  6. Step 6: Final answer
    x = 138,397.35

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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.