Home / 115,199.68-158,956.32-64,201.28

Finding the Fourth Proportional to 115,199.68, 158,956.32 and 64,201.28

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Solution

The fourth proportional to 115,199.68, 158,956.32 and 64,201.28 is: 88,587.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,199.68 : 158,956.32 = 64,201.28 : x
  2. Step 2: Convert to fraction form
    115,199.68/158,956.32 = 64,201.28/x
  3. Step 3: Cross multiply
    115,199.68x = 158,956.32 × 64,201.28
  4. Step 4: Simplify right side
    115,199.68x = 10,205,199,208.09
  5. Step 5: Solve for x
    x = 10,205,199,208.09/115,199.68
  6. Step 6: Final answer
    x = 88,587.04

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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.