Home / 129,935.07-179,305.34-81,563.01

Finding the Fourth Proportional to 129,935.07, 179,305.34 and 81,563.01

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Solution

The fourth proportional to 129,935.07, 179,305.34 and 81,563.01 is: 112,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,935.07 : 179,305.34 = 81,563.01 : x
  2. Step 2: Convert to fraction form
    129,935.07/179,305.34 = 81,563.01/x
  3. Step 3: Cross multiply
    129,935.07x = 179,305.34 × 81,563.01
  4. Step 4: Simplify right side
    129,935.07x = 14,624,682,831.66
  5. Step 5: Solve for x
    x = 14,624,682,831.66/129,935.07
  6. Step 6: Final answer
    x = 112,553.78

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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.