Home / 189,790.02-261,936.27-109,215.90

Finding the Fourth Proportional to 189,790.02, 261,936.27 and 109,215.90

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Solution

The fourth proportional to 189,790.02, 261,936.27 and 109,215.90 is: 150,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,790.02 : 261,936.27 = 109,215.90 : x
  2. Step 2: Convert to fraction form
    189,790.02/261,936.27 = 109,215.90/x
  3. Step 3: Cross multiply
    189,790.02x = 261,936.27 × 109,215.90
  4. Step 4: Simplify right side
    189,790.02x = 28,607,605,470.69
  5. Step 5: Solve for x
    x = 28,607,605,470.69/189,790.02
  6. Step 6: Final answer
    x = 150,732.93

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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.