Home / 134,786.70-185,945.46-78,165.24

Finding the Fourth Proportional to 134,786.70, 185,945.46 and 78,165.24

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Solution

The fourth proportional to 134,786.70, 185,945.46 and 78,165.24 is: 107,833.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,786.70 : 185,945.46 = 78,165.24 : x
  2. Step 2: Convert to fraction form
    134,786.70/185,945.46 = 78,165.24/x
  3. Step 3: Cross multiply
    134,786.70x = 185,945.46 × 78,165.24
  4. Step 4: Simplify right side
    134,786.70x = 14,534,471,507.81
  5. Step 5: Solve for x
    x = 14,534,471,507.81/134,786.70
  6. Step 6: Final answer
    x = 107,833.13

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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.