Home / 99,209.70-136,905.44-53,886.75

Finding the Fourth Proportional to 99,209.70, 136,905.44 and 53,886.75

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Solution

The fourth proportional to 99,209.70, 136,905.44 and 53,886.75 is: 74,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,209.70 : 136,905.44 = 53,886.75 : x
  2. Step 2: Convert to fraction form
    99,209.70/136,905.44 = 53,886.75/x
  3. Step 3: Cross multiply
    99,209.70x = 136,905.44 × 53,886.75
  4. Step 4: Simplify right side
    99,209.70x = 7,377,388,949.49
  5. Step 5: Solve for x
    x = 7,377,388,949.49/99,209.70
  6. Step 6: Final answer
    x = 74,361.57

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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.