Home / 115,269.13-159,100.56-64,997.29

Finding the Fourth Proportional to 115,269.13, 159,100.56 and 64,997.29

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Solution

The fourth proportional to 115,269.13, 159,100.56 and 64,997.29 is: 89,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,269.13 : 159,100.56 = 64,997.29 : x
  2. Step 2: Convert to fraction form
    115,269.13/159,100.56 = 64,997.29/x
  3. Step 3: Cross multiply
    115,269.13x = 159,100.56 × 64,997.29
  4. Step 4: Simplify right side
    115,269.13x = 10,341,104,116.99
  5. Step 5: Solve for x
    x = 10,341,104,116.99/115,269.13
  6. Step 6: Final answer
    x = 89,712.70

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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.