Home / 189,227.88-261,123.78-117,606.08

Finding the Fourth Proportional to 189,227.88, 261,123.78 and 117,606.08

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Solution

The fourth proportional to 189,227.88, 261,123.78 and 117,606.08 is: 162,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,227.88 : 261,123.78 = 117,606.08 : x
  2. Step 2: Convert to fraction form
    189,227.88/261,123.78 = 117,606.08/x
  3. Step 3: Cross multiply
    189,227.88x = 261,123.78 × 117,606.08
  4. Step 4: Simplify right side
    189,227.88x = 30,709,744,160.58
  5. Step 5: Solve for x
    x = 30,709,744,160.58/189,227.88
  6. Step 6: Final answer
    x = 162,289.74

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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.