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Finding the Fourth Proportional to 139,800.49, 209,493.33 and 102,683.05

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Solution

The fourth proportional to 139,800.49, 209,493.33 and 102,683.05 is: 153,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,800.49 : 209,493.33 = 102,683.05 : x
  2. Step 2: Convert to fraction form
    139,800.49/209,493.33 = 102,683.05/x
  3. Step 3: Cross multiply
    139,800.49x = 209,493.33 × 102,683.05
  4. Step 4: Simplify right side
    139,800.49x = 21,511,414,079.06
  5. Step 5: Solve for x
    x = 21,511,414,079.06/139,800.49
  6. Step 6: Final answer
    x = 153,872.24

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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.