Home / 267,815.90-401,726.10-68,136.45

Finding the Fourth Proportional to 267,815.90, 401,726.10 and 68,136.45

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Solution

The fourth proportional to 267,815.90, 401,726.10 and 68,136.45 is: 102,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,815.90 : 401,726.10 = 68,136.45 : x
  2. Step 2: Convert to fraction form
    267,815.90/401,726.10 = 68,136.45/x
  3. Step 3: Cross multiply
    267,815.90x = 401,726.10 × 68,136.45
  4. Step 4: Simplify right side
    267,815.90x = 27,372,190,326.35
  5. Step 5: Solve for x
    x = 27,372,190,326.35/267,815.90
  6. Step 6: Final answer
    x = 102,205.25

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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.