Home / 142,912.17-197,226.68-79,248.60

Finding the Fourth Proportional to 142,912.17, 197,226.68 and 79,248.60

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Solution

The fourth proportional to 142,912.17, 197,226.68 and 79,248.60 is: 109,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,912.17 : 197,226.68 = 79,248.60 : x
  2. Step 2: Convert to fraction form
    142,912.17/197,226.68 = 79,248.60/x
  3. Step 3: Cross multiply
    142,912.17x = 197,226.68 × 79,248.60
  4. Step 4: Simplify right side
    142,912.17x = 15,629,938,272.65
  5. Step 5: Solve for x
    x = 15,629,938,272.65/142,912.17
  6. Step 6: Final answer
    x = 109,367.44

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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.