Home / 188,288.20-282,343.20-109,426.60

Finding the Fourth Proportional to 188,288.20, 282,343.20 and 109,426.60

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Solution

The fourth proportional to 188,288.20, 282,343.20 and 109,426.60 is: 164,088.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,288.20 : 282,343.20 = 109,426.60 : x
  2. Step 2: Convert to fraction form
    188,288.20/282,343.20 = 109,426.60/x
  3. Step 3: Cross multiply
    188,288.20x = 282,343.20 × 109,426.60
  4. Step 4: Simplify right side
    188,288.20x = 30,895,856,409.12
  5. Step 5: Solve for x
    x = 30,895,856,409.12/188,288.20
  6. Step 6: Final answer
    x = 164,088.12

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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.