Home / 192,005.20-288,007.80-109,061.20

Finding the Fourth Proportional to 192,005.20, 288,007.80 and 109,061.20

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Solution

The fourth proportional to 192,005.20, 288,007.80 and 109,061.20 is: 163,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,005.20 : 288,007.80 = 109,061.20 : x
  2. Step 2: Convert to fraction form
    192,005.20/288,007.80 = 109,061.20/x
  3. Step 3: Cross multiply
    192,005.20x = 288,007.80 × 109,061.20
  4. Step 4: Simplify right side
    192,005.20x = 31,410,476,277.36
  5. Step 5: Solve for x
    x = 31,410,476,277.36/192,005.20
  6. Step 6: Final answer
    x = 163,591.80

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1.5x scale

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.