Home / 120,734.68-166,673.82-75,437.78

Finding the Fourth Proportional to 120,734.68, 166,673.82 and 75,437.78

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Solution

The fourth proportional to 120,734.68, 166,673.82 and 75,437.78 is: 104,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.68 : 166,673.82 = 75,437.78 : x
  2. Step 2: Convert to fraction form
    120,734.68/166,673.82 = 75,437.78/x
  3. Step 3: Cross multiply
    120,734.68x = 166,673.82 × 75,437.78
  4. Step 4: Simplify right side
    120,734.68x = 12,573,502,964.92
  5. Step 5: Solve for x
    x = 12,573,502,964.92/120,734.68
  6. Step 6: Final answer
    x = 104,141.60

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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.