Home / 102,131.08-153,122.82-68,768.44

Finding the Fourth Proportional to 102,131.08, 153,122.82 and 68,768.44

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Solution

The fourth proportional to 102,131.08, 153,122.82 and 68,768.44 is: 103,102.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131.08 : 153,122.82 = 68,768.44 : x
  2. Step 2: Convert to fraction form
    102,131.08/153,122.82 = 68,768.44/x
  3. Step 3: Cross multiply
    102,131.08x = 153,122.82 × 68,768.44
  4. Step 4: Simplify right side
    102,131.08x = 10,530,017,459.80
  5. Step 5: Solve for x
    x = 10,530,017,459.80/102,131.08
  6. Step 6: Final answer
    x = 103,102.97

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1.5x scale

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.