Home / 185,074.14-255,402.40-100,191.20

Finding the Fourth Proportional to 185,074.14, 255,402.40 and 100,191.20

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Solution

The fourth proportional to 185,074.14, 255,402.40 and 100,191.20 is: 138,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,074.14 : 255,402.40 = 100,191.20 : x
  2. Step 2: Convert to fraction form
    185,074.14/255,402.40 = 100,191.20/x
  3. Step 3: Cross multiply
    185,074.14x = 255,402.40 × 100,191.20
  4. Step 4: Simplify right side
    185,074.14x = 25,589,072,938.88
  5. Step 5: Solve for x
    x = 25,589,072,938.88/185,074.14
  6. Step 6: Final answer
    x = 138,263.90

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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.