Home / 115,991.52-160,145.43-89,085.96

Finding the Fourth Proportional to 115,991.52, 160,145.43 and 89,085.96

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Solution

The fourth proportional to 115,991.52, 160,145.43 and 89,085.96 is: 122,997.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,991.52 : 160,145.43 = 89,085.96 : x
  2. Step 2: Convert to fraction form
    115,991.52/160,145.43 = 89,085.96/x
  3. Step 3: Cross multiply
    115,991.52x = 160,145.43 × 89,085.96
  4. Step 4: Simplify right side
    115,991.52x = 14,266,709,371.16
  5. Step 5: Solve for x
    x = 14,266,709,371.16/115,991.52
  6. Step 6: Final answer
    x = 122,997.87

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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.