Home / 131,135.84-196,162.48-99,306.80

Finding the Fourth Proportional to 131,135.84, 196,162.48 and 99,306.80

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Solution

The fourth proportional to 131,135.84, 196,162.48 and 99,306.80 is: 148,550.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,135.84 : 196,162.48 = 99,306.80 : x
  2. Step 2: Convert to fraction form
    131,135.84/196,162.48 = 99,306.80/x
  3. Step 3: Cross multiply
    131,135.84x = 196,162.48 × 99,306.80
  4. Step 4: Simplify right side
    131,135.84x = 19,480,266,939.78
  5. Step 5: Solve for x
    x = 19,480,266,939.78/131,135.84
  6. Step 6: Final answer
    x = 148,550.29

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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.