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Finding the Fourth Proportional to 101,405.36, 151,987.48 and 47,297.36

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Solution

The fourth proportional to 101,405.36, 151,987.48 and 47,297.36 is: 70,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,405.36 : 151,987.48 = 47,297.36 : x
  2. Step 2: Convert to fraction form
    101,405.36/151,987.48 = 47,297.36/x
  3. Step 3: Cross multiply
    101,405.36x = 151,987.48 × 47,297.36
  4. Step 4: Simplify right side
    101,405.36x = 7,188,606,557.05
  5. Step 5: Solve for x
    x = 7,188,606,557.05/101,405.36
  6. Step 6: Final answer
    x = 70,889.81

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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.