Home / 115,259.72-159,131.04-88,351.52

Finding the Fourth Proportional to 115,259.72, 159,131.04 and 88,351.52

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Solution

The fourth proportional to 115,259.72, 159,131.04 and 88,351.52 is: 121,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,259.72 : 159,131.04 = 88,351.52 : x
  2. Step 2: Convert to fraction form
    115,259.72/159,131.04 = 88,351.52/x
  3. Step 3: Cross multiply
    115,259.72x = 159,131.04 × 88,351.52
  4. Step 4: Simplify right side
    115,259.72x = 14,059,469,263.18
  5. Step 5: Solve for x
    x = 14,059,469,263.18/115,259.72
  6. Step 6: Final answer
    x = 121,980.77

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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.