Home / 168,013.40-251,631.30-115,136.60

Finding the Fourth Proportional to 168,013.40, 251,631.30 and 115,136.60

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Solution

The fourth proportional to 168,013.40, 251,631.30 and 115,136.60 is: 172,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,013.40 : 251,631.30 = 115,136.60 : x
  2. Step 2: Convert to fraction form
    168,013.40/251,631.30 = 115,136.60/x
  3. Step 3: Cross multiply
    168,013.40x = 251,631.30 × 115,136.60
  4. Step 4: Simplify right side
    168,013.40x = 28,971,972,335.58
  5. Step 5: Solve for x
    x = 28,971,972,335.58/168,013.40
  6. Step 6: Final answer
    x = 172,438.46

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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.