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Finding the Fourth Proportional to 101,071.50, 151,658.40 and 67,360.53

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Solution

The fourth proportional to 101,071.50, 151,658.40 and 67,360.53 is: 101,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,071.50 : 151,658.40 = 67,360.53 : x
  2. Step 2: Convert to fraction form
    101,071.50/151,658.40 = 67,360.53/x
  3. Step 3: Cross multiply
    101,071.50x = 151,658.40 × 67,360.53
  4. Step 4: Simplify right side
    101,071.50x = 10,215,790,202.95
  5. Step 5: Solve for x
    x = 10,215,790,202.95/101,071.50
  6. Step 6: Final answer
    x = 101,074.88

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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.