Home / 131,209.88-196,799.19-77,206.84

Finding the Fourth Proportional to 131,209.88, 196,799.19 and 77,206.84

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Solution

The fourth proportional to 131,209.88, 196,799.19 and 77,206.84 is: 115,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,209.88 : 196,799.19 = 77,206.84 : x
  2. Step 2: Convert to fraction form
    131,209.88/196,799.19 = 77,206.84/x
  3. Step 3: Cross multiply
    131,209.88x = 196,799.19 × 77,206.84
  4. Step 4: Simplify right side
    131,209.88x = 15,194,242,792.94
  5. Step 5: Solve for x
    x = 15,194,242,792.94/131,209.88
  6. Step 6: Final answer
    x = 115,801.06

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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.