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Finding the Fourth Proportional to 185,507.76, 255,999 and 100,624.56

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Solution

The fourth proportional to 185,507.76, 255,999 and 100,624.56 is: 138,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,507.76 : 255,999 = 100,624.56 : x
  2. Step 2: Convert to fraction form
    185,507.76/255,999 = 100,624.56/x
  3. Step 3: Cross multiply
    185,507.76x = 255,999 × 100,624.56
  4. Step 4: Simplify right side
    185,507.76x = 25,759,786,735.44
  5. Step 5: Solve for x
    x = 25,759,786,735.44/185,507.76
  6. Step 6: Final answer
    x = 138,860.97

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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.