Home / 99,305.20-137,043.84-53,986.22

Finding the Fourth Proportional to 99,305.20, 137,043.84 and 53,986.22

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Solution

The fourth proportional to 99,305.20, 137,043.84 and 53,986.22 is: 74,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,305.20 : 137,043.84 = 53,986.22 : x
  2. Step 2: Convert to fraction form
    99,305.20/137,043.84 = 53,986.22/x
  3. Step 3: Cross multiply
    99,305.20x = 137,043.84 × 53,986.22
  4. Step 4: Simplify right side
    99,305.20x = 7,398,478,895.88
  5. Step 5: Solve for x
    x = 7,398,478,895.88/99,305.20
  6. Step 6: Final answer
    x = 74,502.43

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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.