Home / 192,000.20-288,086.70-67,430.60

Finding the Fourth Proportional to 192,000.20, 288,086.70 and 67,430.60

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Solution

The fourth proportional to 192,000.20, 288,086.70 and 67,430.60 is: 101,176.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,000.20 : 288,086.70 = 67,430.60 : x
  2. Step 2: Convert to fraction form
    192,000.20/288,086.70 = 67,430.60/x
  3. Step 3: Cross multiply
    192,000.20x = 288,086.70 × 67,430.60
  4. Step 4: Simplify right side
    192,000.20x = 19,425,859,033.02
  5. Step 5: Solve for x
    x = 19,425,859,033.02/192,000.20
  6. Step 6: Final answer
    x = 101,176.24

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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.