Home / 142,952.14-197,270.94-79,288.66

Finding the Fourth Proportional to 142,952.14, 197,270.94 and 79,288.66

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Solution

The fourth proportional to 142,952.14, 197,270.94 and 79,288.66 is: 109,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,952.14 : 197,270.94 = 79,288.66 : x
  2. Step 2: Convert to fraction form
    142,952.14/197,270.94 = 79,288.66/x
  3. Step 3: Cross multiply
    142,952.14x = 197,270.94 × 79,288.66
  4. Step 4: Simplify right side
    142,952.14x = 15,641,348,489.54
  5. Step 5: Solve for x
    x = 15,641,348,489.54/142,952.14
  6. Step 6: Final answer
    x = 109,416.68

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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.