Home / 115,939.81-159,994.83-64,952.02

Finding the Fourth Proportional to 115,939.81, 159,994.83 and 64,952.02

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Solution

The fourth proportional to 115,939.81, 159,994.83 and 64,952.02 is: 89,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,939.81 : 159,994.83 = 64,952.02 : x
  2. Step 2: Convert to fraction form
    115,939.81/159,994.83 = 64,952.02/x
  3. Step 3: Cross multiply
    115,939.81x = 159,994.83 × 64,952.02
  4. Step 4: Simplify right side
    115,939.81x = 10,391,987,398.06
  5. Step 5: Solve for x
    x = 10,391,987,398.06/115,939.81
  6. Step 6: Final answer
    x = 89,632.61

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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.