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Finding the Fourth Proportional to 101,101.68, 151,529.53 and 71,528.04

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Solution

The fourth proportional to 101,101.68, 151,529.53 and 71,528.04 is: 107,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,101.68 : 151,529.53 = 71,528.04 : x
  2. Step 2: Convert to fraction form
    101,101.68/151,529.53 = 71,528.04/x
  3. Step 3: Cross multiply
    101,101.68x = 151,529.53 × 71,528.04
  4. Step 4: Simplify right side
    101,101.68x = 10,838,610,283.02
  5. Step 5: Solve for x
    x = 10,838,610,283.02/101,101.68
  6. Step 6: Final answer
    x = 107,205.05

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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.