Home / 148,195.51-204,509.78-80,212.47

Finding the Fourth Proportional to 148,195.51, 204,509.78 and 80,212.47

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Solution

The fourth proportional to 148,195.51, 204,509.78 and 80,212.47 is: 110,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,195.51 : 204,509.78 = 80,212.47 : x
  2. Step 2: Convert to fraction form
    148,195.51/204,509.78 = 80,212.47/x
  3. Step 3: Cross multiply
    148,195.51x = 204,509.78 × 80,212.47
  4. Step 4: Simplify right side
    148,195.51x = 16,404,234,592.96
  5. Step 5: Solve for x
    x = 16,404,234,592.96/148,195.51
  6. Step 6: Final answer
    x = 110,693.20

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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.