Home / 149,369.50-206,142.87-82,314.46

Finding the Fourth Proportional to 149,369.50, 206,142.87 and 82,314.46

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Solution

The fourth proportional to 149,369.50, 206,142.87 and 82,314.46 is: 113,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,369.50 : 206,142.87 = 82,314.46 : x
  2. Step 2: Convert to fraction form
    149,369.50/206,142.87 = 82,314.46/x
  3. Step 3: Cross multiply
    149,369.50x = 206,142.87 × 82,314.46
  4. Step 4: Simplify right side
    149,369.50x = 16,968,539,026.90
  5. Step 5: Solve for x
    x = 16,968,539,026.90/149,369.50
  6. Step 6: Final answer
    x = 113,601.10

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1.5x scale

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.