Home / 189,517.89-261,440.30-112,983.06

Finding the Fourth Proportional to 189,517.89, 261,440.30 and 112,983.06

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Solution

The fourth proportional to 189,517.89, 261,440.30 and 112,983.06 is: 155,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,517.89 : 261,440.30 = 112,983.06 : x
  2. Step 2: Convert to fraction form
    189,517.89/261,440.30 = 112,983.06/x
  3. Step 3: Cross multiply
    189,517.89x = 261,440.30 × 112,983.06
  4. Step 4: Simplify right side
    189,517.89x = 29,538,325,101.32
  5. Step 5: Solve for x
    x = 29,538,325,101.32/189,517.89
  6. Step 6: Final answer
    x = 155,860.36

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1.5x scale

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.