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Finding the Fourth Proportional to 101,974.80, 152,812.80 and 91,444.80

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Solution

The fourth proportional to 101,974.80, 152,812.80 and 91,444.80 is: 137,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,974.80 : 152,812.80 = 91,444.80 : x
  2. Step 2: Convert to fraction form
    101,974.80/152,812.80 = 91,444.80/x
  3. Step 3: Cross multiply
    101,974.80x = 152,812.80 × 91,444.80
  4. Step 4: Simplify right side
    101,974.80x = 13,973,935,933.44
  5. Step 5: Solve for x
    x = 13,973,935,933.44/101,974.80
  6. Step 6: Final answer
    x = 137,033.23

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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.