Home / 106,990.10-147,646.31-59,243.43

Finding the Fourth Proportional to 106,990.10, 147,646.31 and 59,243.43

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Solution

The fourth proportional to 106,990.10, 147,646.31 and 59,243.43 is: 81,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,990.10 : 147,646.31 = 59,243.43 : x
  2. Step 2: Convert to fraction form
    106,990.10/147,646.31 = 59,243.43/x
  3. Step 3: Cross multiply
    106,990.10x = 147,646.31 × 59,243.43
  4. Step 4: Simplify right side
    106,990.10x = 8,747,073,535.03
  5. Step 5: Solve for x
    x = 8,747,073,535.03/106,990.10
  6. Step 6: Final answer
    x = 81,755.92

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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.