Home / 120,787.07-166,686.68-67,071.92

Finding the Fourth Proportional to 120,787.07, 166,686.68 and 67,071.92

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Solution

The fourth proportional to 120,787.07, 166,686.68 and 67,071.92 is: 92,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,787.07 : 166,686.68 = 67,071.92 : x
  2. Step 2: Convert to fraction form
    120,787.07/166,686.68 = 67,071.92/x
  3. Step 3: Cross multiply
    120,787.07x = 166,686.68 × 67,071.92
  4. Step 4: Simplify right side
    120,787.07x = 11,179,996,250.42
  5. Step 5: Solve for x
    x = 11,179,996,250.42/120,787.07
  6. Step 6: Final answer
    x = 92,559.54

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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.