Home / 185,074.64-255,403.08-100,191.71

Finding the Fourth Proportional to 185,074.64, 255,403.08 and 100,191.71

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Solution

The fourth proportional to 185,074.64, 255,403.08 and 100,191.71 is: 138,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,074.64 : 255,403.08 = 100,191.71 : x
  2. Step 2: Convert to fraction form
    185,074.64/255,403.08 = 100,191.71/x
  3. Step 3: Cross multiply
    185,074.64x = 255,403.08 × 100,191.71
  4. Step 4: Simplify right side
    185,074.64x = 25,589,270,047.45
  5. Step 5: Solve for x
    x = 25,589,270,047.45/185,074.64
  6. Step 6: Final answer
    x = 138,264.60

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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.