Home / 142,893.45-197,204.76-79,251.75

Finding the Fourth Proportional to 142,893.45, 197,204.76 and 79,251.75

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Solution

The fourth proportional to 142,893.45, 197,204.76 and 79,251.75 is: 109,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,893.45 : 197,204.76 = 79,251.75 : x
  2. Step 2: Convert to fraction form
    142,893.45/197,204.76 = 79,251.75/x
  3. Step 3: Cross multiply
    142,893.45x = 197,204.76 × 79,251.75
  4. Step 4: Simplify right side
    142,893.45x = 15,628,822,338.33
  5. Step 5: Solve for x
    x = 15,628,822,338.33/142,893.45
  6. Step 6: Final answer
    x = 109,373.96

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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.