Home / 185,228.30-255,615.01-100,345.37

Finding the Fourth Proportional to 185,228.30, 255,615.01 and 100,345.37

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Solution

The fourth proportional to 185,228.30, 255,615.01 and 100,345.37 is: 138,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,228.30 : 255,615.01 = 100,345.37 : x
  2. Step 2: Convert to fraction form
    185,228.30/255,615.01 = 100,345.37/x
  3. Step 3: Cross multiply
    185,228.30x = 255,615.01 × 100,345.37
  4. Step 4: Simplify right side
    185,228.30x = 25,649,781,227.07
  5. Step 5: Solve for x
    x = 25,649,781,227.07/185,228.30
  6. Step 6: Final answer
    x = 138,476.58

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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.