Home / 154,537.24-213,266.64-90,880.96

Finding the Fourth Proportional to 154,537.24, 213,266.64 and 90,880.96

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Solution

The fourth proportional to 154,537.24, 213,266.64 and 90,880.96 is: 125,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,537.24 : 213,266.64 = 90,880.96 : x
  2. Step 2: Convert to fraction form
    154,537.24/213,266.64 = 90,880.96/x
  3. Step 3: Cross multiply
    154,537.24x = 213,266.64 × 90,880.96
  4. Step 4: Simplify right side
    154,537.24x = 19,381,876,979.17
  5. Step 5: Solve for x
    x = 19,381,876,979.17/154,537.24
  6. Step 6: Final answer
    x = 125,418.81

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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.