Home / 104,505.49-156,608.79-83,509.38

Finding the Fourth Proportional to 104,505.49, 156,608.79 and 83,509.38

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Solution

The fourth proportional to 104,505.49, 156,608.79 and 83,509.38 is: 125,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,505.49 : 156,608.79 = 83,509.38 : x
  2. Step 2: Convert to fraction form
    104,505.49/156,608.79 = 83,509.38/x
  3. Step 3: Cross multiply
    104,505.49x = 156,608.79 × 83,509.38
  4. Step 4: Simplify right side
    104,505.49x = 13,078,303,112.03
  5. Step 5: Solve for x
    x = 13,078,303,112.03/104,505.49
  6. Step 6: Final answer
    x = 125,144.65

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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.