Home / 115,322.20-159,151.70-64,335.03

Finding the Fourth Proportional to 115,322.20, 159,151.70 and 64,335.03

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Solution

The fourth proportional to 115,322.20, 159,151.70 and 64,335.03 is: 88,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,322.20 : 159,151.70 = 64,335.03 : x
  2. Step 2: Convert to fraction form
    115,322.20/159,151.70 = 64,335.03/x
  3. Step 3: Cross multiply
    115,322.20x = 159,151.70 × 64,335.03
  4. Step 4: Simplify right side
    115,322.20x = 10,239,028,958.07
  5. Step 5: Solve for x
    x = 10,239,028,958.07/115,322.20
  6. Step 6: Final answer
    x = 88,786.28

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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.