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Finding the Fourth Proportional to 101,021.70, 151,583.73 and 67,310.76

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Solution

The fourth proportional to 101,021.70, 151,583.73 and 67,310.76 is: 101,000.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,021.70 : 151,583.73 = 67,310.76 : x
  2. Step 2: Convert to fraction form
    101,021.70/151,583.73 = 67,310.76/x
  3. Step 3: Cross multiply
    101,021.70x = 151,583.73 × 67,310.76
  4. Step 4: Simplify right side
    101,021.70x = 10,203,216,069.93
  5. Step 5: Solve for x
    x = 10,203,216,069.93/101,021.70
  6. Step 6: Final answer
    x = 101,000.24

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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.