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Finding the Fourth Proportional to 101,107.62, 151,655.94 and 30,987.12

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Solution

The fourth proportional to 101,107.62, 151,655.94 and 30,987.12 is: 46,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,107.62 : 151,655.94 = 30,987.12 : x
  2. Step 2: Convert to fraction form
    101,107.62/151,655.94 = 30,987.12/x
  3. Step 3: Cross multiply
    101,107.62x = 151,655.94 × 30,987.12
  4. Step 4: Simplify right side
    101,107.62x = 4,699,380,811.49
  5. Step 5: Solve for x
    x = 4,699,380,811.49/101,107.62
  6. Step 6: Final answer
    x = 46,479.00

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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.