Home / 149,450.50-206,237.56-81,468.80

Finding the Fourth Proportional to 149,450.50, 206,237.56 and 81,468.80

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Solution

The fourth proportional to 149,450.50, 206,237.56 and 81,468.80 is: 112,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,450.50 : 206,237.56 = 81,468.80 : x
  2. Step 2: Convert to fraction form
    149,450.50/206,237.56 = 81,468.80/x
  3. Step 3: Cross multiply
    149,450.50x = 206,237.56 × 81,468.80
  4. Step 4: Simplify right side
    149,450.50x = 16,801,926,528.13
  5. Step 5: Solve for x
    x = 16,801,926,528.13/149,450.50
  6. Step 6: Final answer
    x = 112,424.69

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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.