Home / 239,125.21-329,982.15-137,077.51

Finding the Fourth Proportional to 239,125.21, 329,982.15 and 137,077.51

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Solution

The fourth proportional to 239,125.21, 329,982.15 and 137,077.51 is: 189,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,125.21 : 329,982.15 = 137,077.51 : x
  2. Step 2: Convert to fraction form
    239,125.21/329,982.15 = 137,077.51/x
  3. Step 3: Cross multiply
    239,125.21x = 329,982.15 × 137,077.51
  4. Step 4: Simplify right side
    239,125.21x = 45,233,131,466.45
  5. Step 5: Solve for x
    x = 45,233,131,466.45/239,125.21
  6. Step 6: Final answer
    x = 189,160.86

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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.