Home / 143,668.48-215,701.50-99,185.44

Finding the Fourth Proportional to 143,668.48, 215,701.50 and 99,185.44

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Solution

The fourth proportional to 143,668.48, 215,701.50 and 99,185.44 is: 148,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,668.48 : 215,701.50 = 99,185.44 : x
  2. Step 2: Convert to fraction form
    143,668.48/215,701.50 = 99,185.44/x
  3. Step 3: Cross multiply
    143,668.48x = 215,701.50 × 99,185.44
  4. Step 4: Simplify right side
    143,668.48x = 21,394,448,186.16
  5. Step 5: Solve for x
    x = 21,394,448,186.16/143,668.48
  6. Step 6: Final answer
    x = 148,915.39

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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.