Home / 143,253.03-197,483.88-100,679.43

Finding the Fourth Proportional to 143,253.03, 197,483.88 and 100,679.43

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Solution

The fourth proportional to 143,253.03, 197,483.88 and 100,679.43 is: 138,793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,253.03 : 197,483.88 = 100,679.43 : x
  2. Step 2: Convert to fraction form
    143,253.03/197,483.88 = 100,679.43/x
  3. Step 3: Cross multiply
    143,253.03x = 197,483.88 × 100,679.43
  4. Step 4: Simplify right side
    143,253.03x = 19,882,564,472.59
  5. Step 5: Solve for x
    x = 19,882,564,472.59/143,253.03
  6. Step 6: Final answer
    x = 138,793.33

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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.