Home / 154,489.19-231,777.53-91,365.35

Finding the Fourth Proportional to 154,489.19, 231,777.53 and 91,365.35

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Solution

The fourth proportional to 154,489.19, 231,777.53 and 91,365.35 is: 137,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,489.19 : 231,777.53 = 91,365.35 : x
  2. Step 2: Convert to fraction form
    154,489.19/231,777.53 = 91,365.35/x
  3. Step 3: Cross multiply
    154,489.19x = 231,777.53 × 91,365.35
  4. Step 4: Simplify right side
    154,489.19x = 21,176,435,150.59
  5. Step 5: Solve for x
    x = 21,176,435,150.59/154,489.19
  6. Step 6: Final answer
    x = 137,073.90

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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.