Home / 148,735.19-205,253.42-80,750.81

Finding the Fourth Proportional to 148,735.19, 205,253.42 and 80,750.81

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Solution

The fourth proportional to 148,735.19, 205,253.42 and 80,750.81 is: 111,435.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,735.19 : 205,253.42 = 80,750.81 : x
  2. Step 2: Convert to fraction form
    148,735.19/205,253.42 = 80,750.81/x
  3. Step 3: Cross multiply
    148,735.19x = 205,253.42 × 80,750.81
  4. Step 4: Simplify right side
    148,735.19x = 16,574,379,920.27
  5. Step 5: Solve for x
    x = 16,574,379,920.27/148,735.19
  6. Step 6: Final answer
    x = 111,435.50

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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.