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Finding the Fourth Proportional to 159,472.49, 220,072.55 and 87,852.29

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Solution

The fourth proportional to 159,472.49, 220,072.55 and 87,852.29 is: 121,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,472.49 : 220,072.55 = 87,852.29 : x
  2. Step 2: Convert to fraction form
    159,472.49/220,072.55 = 87,852.29/x
  3. Step 3: Cross multiply
    159,472.49x = 220,072.55 × 87,852.29
  4. Step 4: Simplify right side
    159,472.49x = 19,333,875,944.02
  5. Step 5: Solve for x
    x = 19,333,875,944.02/159,472.49
  6. Step 6: Final answer
    x = 121,236.44

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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.