Home / 131,207.40-196,830.30-68,882.60

Finding the Fourth Proportional to 131,207.40, 196,830.30 and 68,882.60

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Solution

The fourth proportional to 131,207.40, 196,830.30 and 68,882.60 is: 103,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,207.40 : 196,830.30 = 68,882.60 : x
  2. Step 2: Convert to fraction form
    131,207.40/196,830.30 = 68,882.60/x
  3. Step 3: Cross multiply
    131,207.40x = 196,830.30 × 68,882.60
  4. Step 4: Simplify right side
    131,207.40x = 13,558,182,822.78
  5. Step 5: Solve for x
    x = 13,558,182,822.78/131,207.40
  6. Step 6: Final answer
    x = 103,333.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.