Home / 99,643.45-137,511.27-59,351.73

Finding the Fourth Proportional to 99,643.45, 137,511.27 and 59,351.73

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Solution

The fourth proportional to 99,643.45, 137,511.27 and 59,351.73 is: 81,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643.45 : 137,511.27 = 59,351.73 : x
  2. Step 2: Convert to fraction form
    99,643.45/137,511.27 = 59,351.73/x
  3. Step 3: Cross multiply
    99,643.45x = 137,511.27 × 59,351.73
  4. Step 4: Simplify right side
    99,643.45x = 8,161,531,769.00
  5. Step 5: Solve for x
    x = 8,161,531,769.00/99,643.45
  6. Step 6: Final answer
    x = 81,907.36

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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.