Home / 148,836.42-205,397.64-80,855.82

Finding the Fourth Proportional to 148,836.42, 205,397.64 and 80,855.82

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Solution

The fourth proportional to 148,836.42, 205,397.64 and 80,855.82 is: 111,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,836.42 : 205,397.64 = 80,855.82 : x
  2. Step 2: Convert to fraction form
    148,836.42/205,397.64 = 80,855.82/x
  3. Step 3: Cross multiply
    148,836.42x = 205,397.64 × 80,855.82
  4. Step 4: Simplify right side
    148,836.42x = 16,607,594,608.26
  5. Step 5: Solve for x
    x = 16,607,594,608.26/148,836.42
  6. Step 6: Final answer
    x = 111,582.87

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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.