Home / 142,974.94-197,329.07-79,333.24

Finding the Fourth Proportional to 142,974.94, 197,329.07 and 79,333.24

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Solution

The fourth proportional to 142,974.94, 197,329.07 and 79,333.24 is: 109,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.94 : 197,329.07 = 79,333.24 : x
  2. Step 2: Convert to fraction form
    142,974.94/197,329.07 = 79,333.24/x
  3. Step 3: Cross multiply
    142,974.94x = 197,329.07 × 79,333.24
  4. Step 4: Simplify right side
    142,974.94x = 15,654,753,085.98
  5. Step 5: Solve for x
    x = 15,654,753,085.98/142,974.94
  6. Step 6: Final answer
    x = 109,492.99

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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.