Home / 202,569.30-303,935.70-90,172.71

Finding the Fourth Proportional to 202,569.30, 303,935.70 and 90,172.71

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Solution

The fourth proportional to 202,569.30, 303,935.70 and 90,172.71 is: 135,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,569.30 : 303,935.70 = 90,172.71 : x
  2. Step 2: Convert to fraction form
    202,569.30/303,935.70 = 90,172.71/x
  3. Step 3: Cross multiply
    202,569.30x = 303,935.70 × 90,172.71
  4. Step 4: Simplify right side
    202,569.30x = 27,406,705,734.75
  5. Step 5: Solve for x
    x = 27,406,705,734.75/202,569.30
  6. Step 6: Final answer
    x = 135,295.46

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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.