Home / 115,845.03-159,847.61-64,859.90

Finding the Fourth Proportional to 115,845.03, 159,847.61 and 64,859.90

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Solution

The fourth proportional to 115,845.03, 159,847.61 and 64,859.90 is: 89,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.03 : 159,847.61 = 64,859.90 : x
  2. Step 2: Convert to fraction form
    115,845.03/159,847.61 = 64,859.90/x
  3. Step 3: Cross multiply
    115,845.03x = 159,847.61 × 64,859.90
  4. Step 4: Simplify right side
    115,845.03x = 10,367,698,876.30
  5. Step 5: Solve for x
    x = 10,367,698,876.30/115,845.03
  6. Step 6: Final answer
    x = 89,496.28

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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.