Home / 139,383.03-192,241.55-93,989.11

Finding the Fourth Proportional to 139,383.03, 192,241.55 and 93,989.11

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Solution

The fourth proportional to 139,383.03, 192,241.55 and 93,989.11 is: 129,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,383.03 : 192,241.55 = 93,989.11 : x
  2. Step 2: Convert to fraction form
    139,383.03/192,241.55 = 93,989.11/x
  3. Step 3: Cross multiply
    139,383.03x = 192,241.55 × 93,989.11
  4. Step 4: Simplify right side
    139,383.03x = 18,068,612,304.34
  5. Step 5: Solve for x
    x = 18,068,612,304.34/139,383.03
  6. Step 6: Final answer
    x = 129,632.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.