Home / 157,976.37-218,022.44-86,367.24

Finding the Fourth Proportional to 157,976.37, 218,022.44 and 86,367.24

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Solution

The fourth proportional to 157,976.37, 218,022.44 and 86,367.24 is: 119,195.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,976.37 : 218,022.44 = 86,367.24 : x
  2. Step 2: Convert to fraction form
    157,976.37/218,022.44 = 86,367.24/x
  3. Step 3: Cross multiply
    157,976.37x = 218,022.44 × 86,367.24
  4. Step 4: Simplify right side
    157,976.37x = 18,829,995,969.03
  5. Step 5: Solve for x
    x = 18,829,995,969.03/157,976.37
  6. Step 6: Final answer
    x = 119,195.02

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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.