Home / 154,851.20-213,714.48-91,194.92

Finding the Fourth Proportional to 154,851.20, 213,714.48 and 91,194.92

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Solution

The fourth proportional to 154,851.20, 213,714.48 and 91,194.92 is: 125,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,851.20 : 213,714.48 = 91,194.92 : x
  2. Step 2: Convert to fraction form
    154,851.20/213,714.48 = 91,194.92/x
  3. Step 3: Cross multiply
    154,851.20x = 213,714.48 × 91,194.92
  4. Step 4: Simplify right side
    154,851.20x = 19,489,674,906.44
  5. Step 5: Solve for x
    x = 19,489,674,906.44/154,851.20
  6. Step 6: Final answer
    x = 125,860.66

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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.