Home / 120,553.20-166,329.66-70,242.48

Finding the Fourth Proportional to 120,553.20, 166,329.66 and 70,242.48

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Solution

The fourth proportional to 120,553.20, 166,329.66 and 70,242.48 is: 96,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,553.20 : 166,329.66 = 70,242.48 : x
  2. Step 2: Convert to fraction form
    120,553.20/166,329.66 = 70,242.48/x
  3. Step 3: Cross multiply
    120,553.20x = 166,329.66 × 70,242.48
  4. Step 4: Simplify right side
    120,553.20x = 11,683,407,815.96
  5. Step 5: Solve for x
    x = 11,683,407,815.96/120,553.20
  6. Step 6: Final answer
    x = 96,914.95

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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.