Home / 147,221.67-202,961.72-99,399.27

Finding the Fourth Proportional to 147,221.67, 202,961.72 and 99,399.27

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Solution

The fourth proportional to 147,221.67, 202,961.72 and 99,399.27 is: 137,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,221.67 : 202,961.72 = 99,399.27 : x
  2. Step 2: Convert to fraction form
    147,221.67/202,961.72 = 99,399.27/x
  3. Step 3: Cross multiply
    147,221.67x = 202,961.72 × 99,399.27
  4. Step 4: Simplify right side
    147,221.67x = 20,174,246,308.95
  5. Step 5: Solve for x
    x = 20,174,246,308.95/147,221.67
  6. Step 6: Final answer
    x = 137,033.13

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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.