Home / 161,787.82-223,267.54-90,166.40

Finding the Fourth Proportional to 161,787.82, 223,267.54 and 90,166.40

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Solution

The fourth proportional to 161,787.82, 223,267.54 and 90,166.40 is: 124,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,787.82 : 223,267.54 = 90,166.40 : x
  2. Step 2: Convert to fraction form
    161,787.82/223,267.54 = 90,166.40/x
  3. Step 3: Cross multiply
    161,787.82x = 223,267.54 × 90,166.40
  4. Step 4: Simplify right side
    161,787.82x = 20,131,230,318.66
  5. Step 5: Solve for x
    x = 20,131,230,318.66/161,787.82
  6. Step 6: Final answer
    x = 124,429.83

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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.