Home / 148,736.69-205,255.49-80,752.31

Finding the Fourth Proportional to 148,736.69, 205,255.49 and 80,752.31

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Solution

The fourth proportional to 148,736.69, 205,255.49 and 80,752.31 is: 111,437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,736.69 : 205,255.49 = 80,752.31 : x
  2. Step 2: Convert to fraction form
    148,736.69/205,255.49 = 80,752.31/x
  3. Step 3: Cross multiply
    148,736.69x = 205,255.49 × 80,752.31
  4. Step 4: Simplify right side
    148,736.69x = 16,574,854,957.68
  5. Step 5: Solve for x
    x = 16,574,854,957.68/148,736.69
  6. Step 6: Final answer
    x = 111,437.57

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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.