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Finding the Fourth Proportional to 101,464.80, 152,218.80 and 31,351.20

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Solution

The fourth proportional to 101,464.80, 152,218.80 and 31,351.20 is: 47,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,464.80 : 152,218.80 = 31,351.20 : x
  2. Step 2: Convert to fraction form
    101,464.80/152,218.80 = 31,351.20/x
  3. Step 3: Cross multiply
    101,464.80x = 152,218.80 × 31,351.20
  4. Step 4: Simplify right side
    101,464.80x = 4,772,242,042.56
  5. Step 5: Solve for x
    x = 4,772,242,042.56/101,464.80
  6. Step 6: Final answer
    x = 47,033.47

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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.