Home / 110,115.13-151,969.53-61,725.28

Finding the Fourth Proportional to 110,115.13, 151,969.53 and 61,725.28

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Solution

The fourth proportional to 110,115.13, 151,969.53 and 61,725.28 is: 85,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,115.13 : 151,969.53 = 61,725.28 : x
  2. Step 2: Convert to fraction form
    110,115.13/151,969.53 = 61,725.28/x
  3. Step 3: Cross multiply
    110,115.13x = 151,969.53 × 61,725.28
  4. Step 4: Simplify right side
    110,115.13x = 9,380,361,030.87
  5. Step 5: Solve for x
    x = 9,380,361,030.87/110,115.13
  6. Step 6: Final answer
    x = 85,186.85

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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.