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Finding the Fourth Proportional to 158,618.39, 218,945.73 and 141,803.27

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Solution

The fourth proportional to 158,618.39, 218,945.73 and 141,803.27 is: 195,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,618.39 : 218,945.73 = 141,803.27 : x
  2. Step 2: Convert to fraction form
    158,618.39/218,945.73 = 141,803.27/x
  3. Step 3: Cross multiply
    158,618.39x = 218,945.73 × 141,803.27
  4. Step 4: Simplify right side
    158,618.39x = 31,047,219,661.09
  5. Step 5: Solve for x
    x = 31,047,219,661.09/158,618.39
  6. Step 6: Final answer
    x = 195,735.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.