Home / 185,074.61-255,403.53-100,191.47

Finding the Fourth Proportional to 185,074.61, 255,403.53 and 100,191.47

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Solution

The fourth proportional to 185,074.61, 255,403.53 and 100,191.47 is: 138,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,074.61 : 255,403.53 = 100,191.47 : x
  2. Step 2: Convert to fraction form
    185,074.61/255,403.53 = 100,191.47/x
  3. Step 3: Cross multiply
    185,074.61x = 255,403.53 × 100,191.47
  4. Step 4: Simplify right side
    185,074.61x = 25,589,253,836.87
  5. Step 5: Solve for x
    x = 25,589,253,836.87/185,074.61
  6. Step 6: Final answer
    x = 138,264.53

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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.