Home / 131,135.85-196,162.47-99,306.80

Finding the Fourth Proportional to 131,135.85, 196,162.47 and 99,306.80

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Solution

The fourth proportional to 131,135.85, 196,162.47 and 99,306.80 is: 148,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,135.85 : 196,162.47 = 99,306.80 : x
  2. Step 2: Convert to fraction form
    131,135.85/196,162.47 = 99,306.80/x
  3. Step 3: Cross multiply
    131,135.85x = 196,162.47 × 99,306.80
  4. Step 4: Simplify right side
    131,135.85x = 19,480,266,194.98
  5. Step 5: Solve for x
    x = 19,480,266,194.98/131,135.85
  6. Step 6: Final answer
    x = 148,550.27

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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.