Home / 112,250.56-154,905.04-61,949.56

Finding the Fourth Proportional to 112,250.56, 154,905.04 and 61,949.56

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Solution

The fourth proportional to 112,250.56, 154,905.04 and 61,949.56 is: 85,489.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,250.56 : 154,905.04 = 61,949.56 : x
  2. Step 2: Convert to fraction form
    112,250.56/154,905.04 = 61,949.56/x
  3. Step 3: Cross multiply
    112,250.56x = 154,905.04 × 61,949.56
  4. Step 4: Simplify right side
    112,250.56x = 9,596,299,069.78
  5. Step 5: Solve for x
    x = 9,596,299,069.78/112,250.56
  6. Step 6: Final answer
    x = 85,489.99

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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.