Home / 189,218.54-261,184.83-112,761.63

Finding the Fourth Proportional to 189,218.54, 261,184.83 and 112,761.63

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Solution

The fourth proportional to 189,218.54, 261,184.83 and 112,761.63 is: 155,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,218.54 : 261,184.83 = 112,761.63 : x
  2. Step 2: Convert to fraction form
    189,218.54/261,184.83 = 112,761.63/x
  3. Step 3: Cross multiply
    189,218.54x = 261,184.83 × 112,761.63
  4. Step 4: Simplify right side
    189,218.54x = 29,451,627,162.07
  5. Step 5: Solve for x
    x = 29,451,627,162.07/189,218.54
  6. Step 6: Final answer
    x = 155,648.74

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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.