Home / 154,625.28-213,354.24-90,975.36

Finding the Fourth Proportional to 154,625.28, 213,354.24 and 90,975.36

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Solution

The fourth proportional to 154,625.28, 213,354.24 and 90,975.36 is: 125,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,625.28 : 213,354.24 = 90,975.36 : x
  2. Step 2: Convert to fraction form
    154,625.28/213,354.24 = 90,975.36/x
  3. Step 3: Cross multiply
    154,625.28x = 213,354.24 × 90,975.36
  4. Step 4: Simplify right side
    154,625.28x = 19,409,978,791.53
  5. Step 5: Solve for x
    x = 19,409,978,791.53/154,625.28
  6. Step 6: Final answer
    x = 125,529.14

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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.