Home / 148,905.74-205,490.76-80,923.28

Finding the Fourth Proportional to 148,905.74, 205,490.76 and 80,923.28

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Solution

The fourth proportional to 148,905.74, 205,490.76 and 80,923.28 is: 111,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,905.74 : 205,490.76 = 80,923.28 : x
  2. Step 2: Convert to fraction form
    148,905.74/205,490.76 = 80,923.28/x
  3. Step 3: Cross multiply
    148,905.74x = 205,490.76 × 80,923.28
  4. Step 4: Simplify right side
    148,905.74x = 16,628,986,308.89
  5. Step 5: Solve for x
    x = 16,628,986,308.89/148,905.74
  6. Step 6: Final answer
    x = 111,674.58

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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.