Home / 166,787.40-230,166.78-90,306.54

Finding the Fourth Proportional to 166,787.40, 230,166.78 and 90,306.54

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Solution

The fourth proportional to 166,787.40, 230,166.78 and 90,306.54 is: 124,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,787.40 : 230,166.78 = 90,306.54 : x
  2. Step 2: Convert to fraction form
    166,787.40/230,166.78 = 90,306.54/x
  3. Step 3: Cross multiply
    166,787.40x = 230,166.78 × 90,306.54
  4. Step 4: Simplify right side
    166,787.40x = 20,785,565,524.74
  5. Step 5: Solve for x
    x = 20,785,565,524.74/166,787.40
  6. Step 6: Final answer
    x = 124,623.12

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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.