Home / 128,243.20-192,364.81-34,748.95

Finding the Fourth Proportional to 128,243.20, 192,364.81 and 34,748.95

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Solution

The fourth proportional to 128,243.20, 192,364.81 and 34,748.95 is: 52,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,243.20 : 192,364.81 = 34,748.95 : x
  2. Step 2: Convert to fraction form
    128,243.20/192,364.81 = 34,748.95/x
  3. Step 3: Cross multiply
    128,243.20x = 192,364.81 × 34,748.95
  4. Step 4: Simplify right side
    128,243.20x = 6,684,474,596.67
  5. Step 5: Solve for x
    x = 6,684,474,596.67/128,243.20
  6. Step 6: Final answer
    x = 52,123.42

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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.