Home / 100,722.84-151,092.90-48,174.36

Finding the Fourth Proportional to 100,722.84, 151,092.90 and 48,174.36

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Solution

The fourth proportional to 100,722.84, 151,092.90 and 48,174.36 is: 72,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,722.84 : 151,092.90 = 48,174.36 : x
  2. Step 2: Convert to fraction form
    100,722.84/151,092.90 = 48,174.36/x
  3. Step 3: Cross multiply
    100,722.84x = 151,092.90 × 48,174.36
  4. Step 4: Simplify right side
    100,722.84x = 7,278,803,758.04
  5. Step 5: Solve for x
    x = 7,278,803,758.04/100,722.84
  6. Step 6: Final answer
    x = 72,265.67

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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.