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Finding the Fourth Proportional to 101,172.68, 151,634.70 and 71,598.92

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Solution

The fourth proportional to 101,172.68, 151,634.70 and 71,598.92 is: 107,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,172.68 : 151,634.70 = 71,598.92 : x
  2. Step 2: Convert to fraction form
    101,172.68/151,634.70 = 71,598.92/x
  3. Step 3: Cross multiply
    101,172.68x = 151,634.70 × 71,598.92
  4. Step 4: Simplify right side
    101,172.68x = 10,856,880,754.52
  5. Step 5: Solve for x
    x = 10,856,880,754.52/101,172.68
  6. Step 6: Final answer
    x = 107,310.40

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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.