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Finding the Fourth Proportional to 144,668.78, 199,509.74 and 99,266.66

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Solution

The fourth proportional to 144,668.78, 199,509.74 and 99,266.66 is: 136,896.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,668.78 : 199,509.74 = 99,266.66 : x
  2. Step 2: Convert to fraction form
    144,668.78/199,509.74 = 99,266.66/x
  3. Step 3: Cross multiply
    144,668.78x = 199,509.74 × 99,266.66
  4. Step 4: Simplify right side
    144,668.78x = 19,804,665,527.27
  5. Step 5: Solve for x
    x = 19,804,665,527.27/144,668.78
  6. Step 6: Final answer
    x = 136,896.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.