Home / 154,889.36-231,747.12-91,743.36

Finding the Fourth Proportional to 154,889.36, 231,747.12 and 91,743.36

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Solution

The fourth proportional to 154,889.36, 231,747.12 and 91,743.36 is: 137,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,889.36 : 231,747.12 = 91,743.36 : x
  2. Step 2: Convert to fraction form
    154,889.36/231,747.12 = 91,743.36/x
  3. Step 3: Cross multiply
    154,889.36x = 231,747.12 × 91,743.36
  4. Step 4: Simplify right side
    154,889.36x = 21,261,259,459.12
  5. Step 5: Solve for x
    x = 21,261,259,459.12/154,889.36
  6. Step 6: Final answer
    x = 137,267.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.