Home / 150,640.13-207,881.56-86,976.56

Finding the Fourth Proportional to 150,640.13, 207,881.56 and 86,976.56

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Solution

The fourth proportional to 150,640.13, 207,881.56 and 86,976.56 is: 120,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,640.13 : 207,881.56 = 86,976.56 : x
  2. Step 2: Convert to fraction form
    150,640.13/207,881.56 = 86,976.56/x
  3. Step 3: Cross multiply
    150,640.13x = 207,881.56 × 86,976.56
  4. Step 4: Simplify right side
    150,640.13x = 18,080,822,976.23
  5. Step 5: Solve for x
    x = 18,080,822,976.23/150,640.13
  6. Step 6: Final answer
    x = 120,026.60

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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.