Home / 239,121.84-329,990.40-131,694.24

Finding the Fourth Proportional to 239,121.84, 329,990.40 and 131,694.24

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Solution

The fourth proportional to 239,121.84, 329,990.40 and 131,694.24 is: 181,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,121.84 : 329,990.40 = 131,694.24 : x
  2. Step 2: Convert to fraction form
    239,121.84/329,990.40 = 131,694.24/x
  3. Step 3: Cross multiply
    239,121.84x = 329,990.40 × 131,694.24
  4. Step 4: Simplify right side
    239,121.84x = 43,457,834,935.30
  5. Step 5: Solve for x
    x = 43,457,834,935.30/239,121.84
  6. Step 6: Final answer
    x = 181,739.30

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1.5x scale

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.