Home / 154,836.58-213,674.33-87,768.58

Finding the Fourth Proportional to 154,836.58, 213,674.33 and 87,768.58

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Solution

The fourth proportional to 154,836.58, 213,674.33 and 87,768.58 is: 121,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,836.58 : 213,674.33 = 87,768.58 : x
  2. Step 2: Convert to fraction form
    154,836.58/213,674.33 = 87,768.58/x
  3. Step 3: Cross multiply
    154,836.58x = 213,674.33 × 87,768.58
  4. Step 4: Simplify right side
    154,836.58x = 18,753,892,526.55
  5. Step 5: Solve for x
    x = 18,753,892,526.55/154,836.58
  6. Step 6: Final answer
    x = 121,120.56

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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.