Home / 188,839.20-282,675.60-109,718.40

Finding the Fourth Proportional to 188,839.20, 282,675.60 and 109,718.40

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Solution

The fourth proportional to 188,839.20, 282,675.60 and 109,718.40 is: 164,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,839.20 : 282,675.60 = 109,718.40 : x
  2. Step 2: Convert to fraction form
    188,839.20/282,675.60 = 109,718.40/x
  3. Step 3: Cross multiply
    188,839.20x = 282,675.60 × 109,718.40
  4. Step 4: Simplify right side
    188,839.20x = 31,014,714,551.04
  5. Step 5: Solve for x
    x = 31,014,714,551.04/188,839.20
  6. Step 6: Final answer
    x = 164,238.75

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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.