Home / 202,123.80-303,295.05-83,807.10

Finding the Fourth Proportional to 202,123.80, 303,295.05 and 83,807.10

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Solution

The fourth proportional to 202,123.80, 303,295.05 and 83,807.10 is: 125,755.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,123.80 : 303,295.05 = 83,807.10 : x
  2. Step 2: Convert to fraction form
    202,123.80/303,295.05 = 83,807.10/x
  3. Step 3: Cross multiply
    202,123.80x = 303,295.05 × 83,807.10
  4. Step 4: Simplify right side
    202,123.80x = 25,418,278,584.86
  5. Step 5: Solve for x
    x = 25,418,278,584.86/202,123.80
  6. Step 6: Final answer
    x = 125,755.99

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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.