Home / 239,964.40-359,849.40-82,111.60

Finding the Fourth Proportional to 239,964.40, 359,849.40 and 82,111.60

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Solution

The fourth proportional to 239,964.40, 359,849.40 and 82,111.60 is: 123,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,964.40 : 359,849.40 = 82,111.60 : x
  2. Step 2: Convert to fraction form
    239,964.40/359,849.40 = 82,111.60/x
  3. Step 3: Cross multiply
    239,964.40x = 359,849.40 × 82,111.60
  4. Step 4: Simplify right side
    239,964.40x = 29,547,809,993.04
  5. Step 5: Solve for x
    x = 29,547,809,993.04/239,964.40
  6. Step 6: Final answer
    x = 123,134.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.