Home / 109,734.58-151,446.05-61,991.02

Finding the Fourth Proportional to 109,734.58, 151,446.05 and 61,991.02

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Solution

The fourth proportional to 109,734.58, 151,446.05 and 61,991.02 is: 85,554.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,734.58 : 151,446.05 = 61,991.02 : x
  2. Step 2: Convert to fraction form
    109,734.58/151,446.05 = 61,991.02/x
  3. Step 3: Cross multiply
    109,734.58x = 151,446.05 × 61,991.02
  4. Step 4: Simplify right side
    109,734.58x = 9,388,295,114.47
  5. Step 5: Solve for x
    x = 9,388,295,114.47/109,734.58
  6. Step 6: Final answer
    x = 85,554.57

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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.