Home / 192,913.80-288,981.90-109,710.60

Finding the Fourth Proportional to 192,913.80, 288,981.90 and 109,710.60

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Solution

The fourth proportional to 192,913.80, 288,981.90 and 109,710.60 is: 164,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,913.80 : 288,981.90 = 109,710.60 : x
  2. Step 2: Convert to fraction form
    192,913.80/288,981.90 = 109,710.60/x
  3. Step 3: Cross multiply
    192,913.80x = 288,981.90 × 109,710.60
  4. Step 4: Simplify right side
    192,913.80x = 31,704,377,638.14
  5. Step 5: Solve for x
    x = 31,704,377,638.14/192,913.80
  6. Step 6: Final answer
    x = 164,344.79

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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.