Home / 99,211.43-136,912.79-53,890.29

Finding the Fourth Proportional to 99,211.43, 136,912.79 and 53,890.29

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Solution

The fourth proportional to 99,211.43, 136,912.79 and 53,890.29 is: 74,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,211.43 : 136,912.79 = 53,890.29 : x
  2. Step 2: Convert to fraction form
    99,211.43/136,912.79 = 53,890.29/x
  3. Step 3: Cross multiply
    99,211.43x = 136,912.79 × 53,890.29
  4. Step 4: Simplify right side
    99,211.43x = 7,378,269,273.25
  5. Step 5: Solve for x
    x = 7,378,269,273.25/99,211.43
  6. Step 6: Final answer
    x = 74,369.15

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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.