Home / 133,211.27-199,644.65-99,668.15

Finding the Fourth Proportional to 133,211.27, 199,644.65 and 99,668.15

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Solution

The fourth proportional to 133,211.27, 199,644.65 and 99,668.15 is: 149,373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,211.27 : 199,644.65 = 99,668.15 : x
  2. Step 2: Convert to fraction form
    133,211.27/199,644.65 = 99,668.15/x
  3. Step 3: Cross multiply
    133,211.27x = 199,644.65 × 99,668.15
  4. Step 4: Simplify right side
    133,211.27x = 19,898,212,922.90
  5. Step 5: Solve for x
    x = 19,898,212,922.90/133,211.27
  6. Step 6: Final answer
    x = 149,373.35

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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.