Home / 142,926.30-197,282.46-91,939.03

Finding the Fourth Proportional to 142,926.30, 197,282.46 and 91,939.03

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Solution

The fourth proportional to 142,926.30, 197,282.46 and 91,939.03 is: 126,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.30 : 197,282.46 = 91,939.03 : x
  2. Step 2: Convert to fraction form
    142,926.30/197,282.46 = 91,939.03/x
  3. Step 3: Cross multiply
    142,926.30x = 197,282.46 × 91,939.03
  4. Step 4: Simplify right side
    142,926.30x = 18,137,958,550.70
  5. Step 5: Solve for x
    x = 18,137,958,550.70/142,926.30
  6. Step 6: Final answer
    x = 126,904.27

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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.