Home / 150,996.66-208,358.46-90,569.76

Finding the Fourth Proportional to 150,996.66, 208,358.46 and 90,569.76

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Solution

The fourth proportional to 150,996.66, 208,358.46 and 90,569.76 is: 124,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,996.66 : 208,358.46 = 90,569.76 : x
  2. Step 2: Convert to fraction form
    150,996.66/208,358.46 = 90,569.76/x
  3. Step 3: Cross multiply
    150,996.66x = 208,358.46 × 90,569.76
  4. Step 4: Simplify right side
    150,996.66x = 18,870,975,716.17
  5. Step 5: Solve for x
    x = 18,870,975,716.17/150,996.66
  6. Step 6: Final answer
    x = 124,976.11

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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.