Home / 192,110.40-288,165.60-67,435.20

Finding the Fourth Proportional to 192,110.40, 288,165.60 and 67,435.20

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Solution

The fourth proportional to 192,110.40, 288,165.60 and 67,435.20 is: 101,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,110.40 : 288,165.60 = 67,435.20 : x
  2. Step 2: Convert to fraction form
    192,110.40/288,165.60 = 67,435.20/x
  3. Step 3: Cross multiply
    192,110.40x = 288,165.60 × 67,435.20
  4. Step 4: Simplify right side
    192,110.40x = 19,432,504,869.12
  5. Step 5: Solve for x
    x = 19,432,504,869.12/192,110.40
  6. Step 6: Final answer
    x = 101,152.80

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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.