Home / 148,795.79-205,339.86-80,813.57

Finding the Fourth Proportional to 148,795.79, 205,339.86 and 80,813.57

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Solution

The fourth proportional to 148,795.79, 205,339.86 and 80,813.57 is: 111,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,795.79 : 205,339.86 = 80,813.57 : x
  2. Step 2: Convert to fraction form
    148,795.79/205,339.86 = 80,813.57/x
  3. Step 3: Cross multiply
    148,795.79x = 205,339.86 × 80,813.57
  4. Step 4: Simplify right side
    148,795.79x = 16,594,246,123.20
  5. Step 5: Solve for x
    x = 16,594,246,123.20/148,795.79
  6. Step 6: Final answer
    x = 111,523.63

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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.