Home / 157,769.37-236,535.12-81,786.15

Finding the Fourth Proportional to 157,769.37, 236,535.12 and 81,786.15

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Solution

The fourth proportional to 157,769.37, 236,535.12 and 81,786.15 is: 122,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,769.37 : 236,535.12 = 81,786.15 : x
  2. Step 2: Convert to fraction form
    157,769.37/236,535.12 = 81,786.15/x
  3. Step 3: Cross multiply
    157,769.37x = 236,535.12 × 81,786.15
  4. Step 4: Simplify right side
    157,769.37x = 19,345,296,804.59
  5. Step 5: Solve for x
    x = 19,345,296,804.59/157,769.37
  6. Step 6: Final answer
    x = 122,617.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.