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Finding the Fourth Proportional to 101,991.56, 153,003.74 and 42,844.15

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Solution

The fourth proportional to 101,991.56, 153,003.74 and 42,844.15 is: 64,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,991.56 : 153,003.74 = 42,844.15 : x
  2. Step 2: Convert to fraction form
    101,991.56/153,003.74 = 42,844.15/x
  3. Step 3: Cross multiply
    101,991.56x = 153,003.74 × 42,844.15
  4. Step 4: Simplify right side
    101,991.56x = 6,555,314,590.39
  5. Step 5: Solve for x
    x = 6,555,314,590.39/101,991.56
  6. Step 6: Final answer
    x = 64,273.11

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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.