Home / 239,111.34-329,961.02-137,131.53

Finding the Fourth Proportional to 239,111.34, 329,961.02 and 137,131.53

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Solution

The fourth proportional to 239,111.34, 329,961.02 and 137,131.53 is: 189,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,111.34 : 329,961.02 = 137,131.53 : x
  2. Step 2: Convert to fraction form
    239,111.34/329,961.02 = 137,131.53/x
  3. Step 3: Cross multiply
    239,111.34x = 329,961.02 × 137,131.53
  4. Step 4: Simplify right side
    239,111.34x = 45,248,058,827.30
  5. Step 5: Solve for x
    x = 45,248,058,827.30/239,111.34
  6. Step 6: Final answer
    x = 189,234.27

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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.