Home / 99,640.98-137,553.65-69,037.29

Finding the Fourth Proportional to 99,640.98, 137,553.65 and 69,037.29

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Solution

The fourth proportional to 99,640.98, 137,553.65 and 69,037.29 is: 95,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640.98 : 137,553.65 = 69,037.29 : x
  2. Step 2: Convert to fraction form
    99,640.98/137,553.65 = 69,037.29/x
  3. Step 3: Cross multiply
    99,640.98x = 137,553.65 × 69,037.29
  4. Step 4: Simplify right side
    99,640.98x = 9,496,330,192.65
  5. Step 5: Solve for x
    x = 9,496,330,192.65/99,640.98
  6. Step 6: Final answer
    x = 95,305.47

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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.