Home / 239,051.40-329,890.19-131,621.46

Finding the Fourth Proportional to 239,051.40, 329,890.19 and 131,621.46

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Solution

The fourth proportional to 239,051.40, 329,890.19 and 131,621.46 is: 181,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,051.40 : 329,890.19 = 131,621.46 : x
  2. Step 2: Convert to fraction form
    239,051.40/329,890.19 = 131,621.46/x
  3. Step 3: Cross multiply
    239,051.40x = 329,890.19 × 131,621.46
  4. Step 4: Simplify right side
    239,051.40x = 43,420,627,662.84
  5. Step 5: Solve for x
    x = 43,420,627,662.84/239,051.40
  6. Step 6: Final answer
    x = 181,637.20

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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.