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Finding the Fourth Proportional to 101,171.79, 151,756.47 and 26,285.31

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Solution

The fourth proportional to 101,171.79, 151,756.47 and 26,285.31 is: 39,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,171.79 : 151,756.47 = 26,285.31 : x
  2. Step 2: Convert to fraction form
    101,171.79/151,756.47 = 26,285.31/x
  3. Step 3: Cross multiply
    101,171.79x = 151,756.47 × 26,285.31
  4. Step 4: Simplify right side
    101,171.79x = 3,988,965,858.46
  5. Step 5: Solve for x
    x = 3,988,965,858.46/101,171.79
  6. Step 6: Final answer
    x = 39,427.65

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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.