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Finding the Fourth Proportional to 159,553.16, 220,220.88 and 99,169.41

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Solution

The fourth proportional to 159,553.16, 220,220.88 and 99,169.41 is: 136,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,553.16 : 220,220.88 = 99,169.41 : x
  2. Step 2: Convert to fraction form
    159,553.16/220,220.88 = 99,169.41/x
  3. Step 3: Cross multiply
    159,553.16x = 220,220.88 × 99,169.41
  4. Step 4: Simplify right side
    159,553.16x = 21,839,174,436.65
  5. Step 5: Solve for x
    x = 21,839,174,436.65/159,553.16
  6. Step 6: Final answer
    x = 136,877.10

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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.