Home / 89,067.70-133,601.55-87,685.30

Finding the Fourth Proportional to 89,067.70, 133,601.55 and 87,685.30

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Solution

The fourth proportional to 89,067.70, 133,601.55 and 87,685.30 is: 131,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,067.70 : 133,601.55 = 87,685.30 : x
  2. Step 2: Convert to fraction form
    89,067.70/133,601.55 = 87,685.30/x
  3. Step 3: Cross multiply
    89,067.70x = 133,601.55 × 87,685.30
  4. Step 4: Simplify right side
    89,067.70x = 11,714,891,992.22
  5. Step 5: Solve for x
    x = 11,714,891,992.22/89,067.70
  6. Step 6: Final answer
    x = 131,527.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.