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Finding the Fourth Proportional to 137,373.44, 206,136.70 and 74,192.22

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Solution

The fourth proportional to 137,373.44, 206,136.70 and 74,192.22 is: 111,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,373.44 : 206,136.70 = 74,192.22 : x
  2. Step 2: Convert to fraction form
    137,373.44/206,136.70 = 74,192.22/x
  3. Step 3: Cross multiply
    137,373.44x = 206,136.70 × 74,192.22
  4. Step 4: Simplify right side
    137,373.44x = 15,293,739,210.99
  5. Step 5: Solve for x
    x = 15,293,739,210.99/137,373.44
  6. Step 6: Final answer
    x = 111,329.67

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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.