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Finding the Fourth Proportional to 120,787.80, 166,681.59 and 67,076.22

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Solution

The fourth proportional to 120,787.80, 166,681.59 and 67,076.22 is: 92,562.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,787.80 : 166,681.59 = 67,076.22 : x
  2. Step 2: Convert to fraction form
    120,787.80/166,681.59 = 67,076.22/x
  3. Step 3: Cross multiply
    120,787.80x = 166,681.59 × 67,076.22
  4. Step 4: Simplify right side
    120,787.80x = 11,180,371,000.79
  5. Step 5: Solve for x
    x = 11,180,371,000.79/120,787.80
  6. Step 6: Final answer
    x = 92,562.09

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1.5x scale

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.