Home / 165,113.28-227,857.59-89,661.78

Finding the Fourth Proportional to 165,113.28, 227,857.59 and 89,661.78

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Solution

The fourth proportional to 165,113.28, 227,857.59 and 89,661.78 is: 123,733.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,113.28 : 227,857.59 = 89,661.78 : x
  2. Step 2: Convert to fraction form
    165,113.28/227,857.59 = 89,661.78/x
  3. Step 3: Cross multiply
    165,113.28x = 227,857.59 × 89,661.78
  4. Step 4: Simplify right side
    165,113.28x = 20,430,117,105.91
  5. Step 5: Solve for x
    x = 20,430,117,105.91/165,113.28
  6. Step 6: Final answer
    x = 123,733.94

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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.