Home / 140,238.87-194,836.09-138,557.35

Finding the Fourth Proportional to 140,238.87, 194,836.09 and 138,557.35

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Solution

The fourth proportional to 140,238.87, 194,836.09 and 138,557.35 is: 192,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,238.87 : 194,836.09 = 138,557.35 : x
  2. Step 2: Convert to fraction form
    140,238.87/194,836.09 = 138,557.35/x
  3. Step 3: Cross multiply
    140,238.87x = 194,836.09 × 138,557.35
  4. Step 4: Simplify right side
    140,238.87x = 26,995,973,148.25
  5. Step 5: Solve for x
    x = 26,995,973,148.25/140,238.87
  6. Step 6: Final answer
    x = 192,499.94

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.