Home / 142,936.70-197,264.76-79,295

Finding the Fourth Proportional to 142,936.70, 197,264.76 and 79,295

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Solution

The fourth proportional to 142,936.70, 197,264.76 and 79,295 is: 109,433.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,936.70 : 197,264.76 = 79,295 : x
  2. Step 2: Convert to fraction form
    142,936.70/197,264.76 = 79,295/x
  3. Step 3: Cross multiply
    142,936.70x = 197,264.76 × 79,295
  4. Step 4: Simplify right side
    142,936.70x = 15,642,109,144.20
  5. Step 5: Solve for x
    x = 15,642,109,144.20/142,936.70
  6. Step 6: Final answer
    x = 109,433.82

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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.