Home / 192,901.16-289,351.77-80,520.07

Finding the Fourth Proportional to 192,901.16, 289,351.77 and 80,520.07

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Solution

The fourth proportional to 192,901.16, 289,351.77 and 80,520.07 is: 120,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,901.16 : 289,351.77 = 80,520.07 : x
  2. Step 2: Convert to fraction form
    192,901.16/289,351.77 = 80,520.07/x
  3. Step 3: Cross multiply
    192,901.16x = 289,351.77 × 80,520.07
  4. Step 4: Simplify right side
    192,901.16x = 23,298,624,372.42
  5. Step 5: Solve for x
    x = 23,298,624,372.42/192,901.16
  6. Step 6: Final answer
    x = 120,780.12

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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.