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Finding the Fourth Proportional to 159,858.49, 220,604.74 and 88,238.53

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Solution

The fourth proportional to 159,858.49, 220,604.74 and 88,238.53 is: 121,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858.49 : 220,604.74 = 88,238.53 : x
  2. Step 2: Convert to fraction form
    159,858.49/220,604.74 = 88,238.53/x
  3. Step 3: Cross multiply
    159,858.49x = 220,604.74 × 88,238.53
  4. Step 4: Simplify right side
    159,858.49x = 19,465,837,968.63
  5. Step 5: Solve for x
    x = 19,465,837,968.63/159,858.49
  6. Step 6: Final answer
    x = 121,769.18

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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.