Home / 239,858.16-330,992.43-137,811.38

Finding the Fourth Proportional to 239,858.16, 330,992.43 and 137,811.38

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Solution

The fourth proportional to 239,858.16, 330,992.43 and 137,811.38 is: 190,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,858.16 : 330,992.43 = 137,811.38 : x
  2. Step 2: Convert to fraction form
    239,858.16/330,992.43 = 137,811.38/x
  3. Step 3: Cross multiply
    239,858.16x = 330,992.43 × 137,811.38
  4. Step 4: Simplify right side
    239,858.16x = 45,614,521,376.10
  5. Step 5: Solve for x
    x = 45,614,521,376.10/239,858.16
  6. Step 6: Final answer
    x = 190,172.90

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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.