Home / 150,935.30-208,286.31-86,402.39

Finding the Fourth Proportional to 150,935.30, 208,286.31 and 86,402.39

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Solution

The fourth proportional to 150,935.30, 208,286.31 and 86,402.39 is: 119,232.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,935.30 : 208,286.31 = 86,402.39 : x
  2. Step 2: Convert to fraction form
    150,935.30/208,286.31 = 86,402.39/x
  3. Step 3: Cross multiply
    150,935.30x = 208,286.31 × 86,402.39
  4. Step 4: Simplify right side
    150,935.30x = 17,996,434,988.28
  5. Step 5: Solve for x
    x = 17,996,434,988.28/150,935.30
  6. Step 6: Final answer
    x = 119,232.78

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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.