Home / 188,440.20-282,660.30-109,643.40

Finding the Fourth Proportional to 188,440.20, 282,660.30 and 109,643.40

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Solution

The fourth proportional to 188,440.20, 282,660.30 and 109,643.40 is: 164,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,440.20 : 282,660.30 = 109,643.40 : x
  2. Step 2: Convert to fraction form
    188,440.20/282,660.30 = 109,643.40/x
  3. Step 3: Cross multiply
    188,440.20x = 282,660.30 × 109,643.40
  4. Step 4: Simplify right side
    188,440.20x = 30,991,836,337.02
  5. Step 5: Solve for x
    x = 30,991,836,337.02/188,440.20
  6. Step 6: Final answer
    x = 164,465.10

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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.