Home / 154,378.20-213,083.82-90,736.44

Finding the Fourth Proportional to 154,378.20, 213,083.82 and 90,736.44

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Solution

The fourth proportional to 154,378.20, 213,083.82 and 90,736.44 is: 125,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,378.20 : 213,083.82 = 90,736.44 : x
  2. Step 2: Convert to fraction form
    154,378.20/213,083.82 = 90,736.44/x
  3. Step 3: Cross multiply
    154,378.20x = 213,083.82 × 90,736.44
  4. Step 4: Simplify right side
    154,378.20x = 19,334,467,248.40
  5. Step 5: Solve for x
    x = 19,334,467,248.40/154,378.20
  6. Step 6: Final answer
    x = 125,240.92

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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.