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Finding the Fourth Proportional to 101,285.97, 151,543.47 and 61,157.25

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Solution

The fourth proportional to 101,285.97, 151,543.47 and 61,157.25 is: 91,503.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,285.97 : 151,543.47 = 61,157.25 : x
  2. Step 2: Convert to fraction form
    101,285.97/151,543.47 = 61,157.25/x
  3. Step 3: Cross multiply
    101,285.97x = 151,543.47 × 61,157.25
  4. Step 4: Simplify right side
    101,285.97x = 9,267,981,880.66
  5. Step 5: Solve for x
    x = 9,267,981,880.66/101,285.97
  6. Step 6: Final answer
    x = 91,503.12

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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.