Home / 142,936.20-197,264.07-79,294.50

Finding the Fourth Proportional to 142,936.20, 197,264.07 and 79,294.50

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Solution

The fourth proportional to 142,936.20, 197,264.07 and 79,294.50 is: 109,433.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,936.20 : 197,264.07 = 79,294.50 : x
  2. Step 2: Convert to fraction form
    142,936.20/197,264.07 = 79,294.50/x
  3. Step 3: Cross multiply
    142,936.20x = 197,264.07 × 79,294.50
  4. Step 4: Simplify right side
    142,936.20x = 15,641,955,798.62
  5. Step 5: Solve for x
    x = 15,641,955,798.62/142,936.20
  6. Step 6: Final answer
    x = 109,433.13

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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.