Home / 154,844.89-213,642.01-90,316.94

Finding the Fourth Proportional to 154,844.89, 213,642.01 and 90,316.94

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Solution

The fourth proportional to 154,844.89, 213,642.01 and 90,316.94 is: 124,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,844.89 : 213,642.01 = 90,316.94 : x
  2. Step 2: Convert to fraction form
    154,844.89/213,642.01 = 90,316.94/x
  3. Step 3: Cross multiply
    154,844.89x = 213,642.01 × 90,316.94
  4. Step 4: Simplify right side
    154,844.89x = 19,295,491,078.85
  5. Step 5: Solve for x
    x = 19,295,491,078.85/154,844.89
  6. Step 6: Final answer
    x = 124,611.74

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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.