Home / 148,648.06-205,133.26-80,663.31

Finding the Fourth Proportional to 148,648.06, 205,133.26 and 80,663.31

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Solution

The fourth proportional to 148,648.06, 205,133.26 and 80,663.31 is: 111,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,648.06 : 205,133.26 = 80,663.31 : x
  2. Step 2: Convert to fraction form
    148,648.06/205,133.26 = 80,663.31/x
  3. Step 3: Cross multiply
    148,648.06x = 205,133.26 × 80,663.31
  4. Step 4: Simplify right side
    148,648.06x = 16,546,727,742.69
  5. Step 5: Solve for x
    x = 16,546,727,742.69/148,648.06
  6. Step 6: Final answer
    x = 111,314.79

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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.