Home / 148,734.69-205,252.73-80,750.31

Finding the Fourth Proportional to 148,734.69, 205,252.73 and 80,750.31

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Solution

The fourth proportional to 148,734.69, 205,252.73 and 80,750.31 is: 111,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,734.69 : 205,252.73 = 80,750.31 : x
  2. Step 2: Convert to fraction form
    148,734.69/205,252.73 = 80,750.31/x
  3. Step 3: Cross multiply
    148,734.69x = 205,252.73 × 80,750.31
  4. Step 4: Simplify right side
    148,734.69x = 16,574,221,575.85
  5. Step 5: Solve for x
    x = 16,574,221,575.85/148,734.69
  6. Step 6: Final answer
    x = 111,434.81

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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.