Home / 136,945.80-205,418.70-113,617.80

Finding the Fourth Proportional to 136,945.80, 205,418.70 and 113,617.80

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Solution

The fourth proportional to 136,945.80, 205,418.70 and 113,617.80 is: 170,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945.80 : 205,418.70 = 113,617.80 : x
  2. Step 2: Convert to fraction form
    136,945.80/205,418.70 = 113,617.80/x
  3. Step 3: Cross multiply
    136,945.80x = 205,418.70 × 113,617.80
  4. Step 4: Simplify right side
    136,945.80x = 23,339,220,772.86
  5. Step 5: Solve for x
    x = 23,339,220,772.86/136,945.80
  6. Step 6: Final answer
    x = 170,426.70

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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.