Home / 192,598.50-288,966.18-85,972.80

Finding the Fourth Proportional to 192,598.50, 288,966.18 and 85,972.80

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Solution

The fourth proportional to 192,598.50, 288,966.18 and 85,972.80 is: 128,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,598.50 : 288,966.18 = 85,972.80 : x
  2. Step 2: Convert to fraction form
    192,598.50/288,966.18 = 85,972.80/x
  3. Step 3: Cross multiply
    192,598.50x = 288,966.18 × 85,972.80
  4. Step 4: Simplify right side
    192,598.50x = 24,843,231,599.90
  5. Step 5: Solve for x
    x = 24,843,231,599.90/192,598.50
  6. Step 6: Final answer
    x = 128,989.75

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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.