Home / 147,699.36-203,824.08-80,631.36

Finding the Fourth Proportional to 147,699.36, 203,824.08 and 80,631.36

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Solution

The fourth proportional to 147,699.36, 203,824.08 and 80,631.36 is: 111,270.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,699.36 : 203,824.08 = 80,631.36 : x
  2. Step 2: Convert to fraction form
    147,699.36/203,824.08 = 80,631.36/x
  3. Step 3: Cross multiply
    147,699.36x = 203,824.08 × 80,631.36
  4. Step 4: Simplify right side
    147,699.36x = 16,434,612,771.15
  5. Step 5: Solve for x
    x = 16,434,612,771.15/147,699.36
  6. Step 6: Final answer
    x = 111,270.71

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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.