Home / 135,521.20-186,849.23-87,037.54

Finding the Fourth Proportional to 135,521.20, 186,849.23 and 87,037.54

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Solution

The fourth proportional to 135,521.20, 186,849.23 and 87,037.54 is: 120,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,521.20 : 186,849.23 = 87,037.54 : x
  2. Step 2: Convert to fraction form
    135,521.20/186,849.23 = 87,037.54/x
  3. Step 3: Cross multiply
    135,521.20x = 186,849.23 × 87,037.54
  4. Step 4: Simplify right side
    135,521.20x = 16,262,896,917.37
  5. Step 5: Solve for x
    x = 16,262,896,917.37/135,521.20
  6. Step 6: Final answer
    x = 120,002.60

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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.