Home / 138,601.33-191,187.25-87,523.95

Finding the Fourth Proportional to 138,601.33, 191,187.25 and 87,523.95

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Solution

The fourth proportional to 138,601.33, 191,187.25 and 87,523.95 is: 120,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601.33 : 191,187.25 = 87,523.95 : x
  2. Step 2: Convert to fraction form
    138,601.33/191,187.25 = 87,523.95/x
  3. Step 3: Cross multiply
    138,601.33x = 191,187.25 × 87,523.95
  4. Step 4: Simplify right side
    138,601.33x = 16,733,463,309.64
  5. Step 5: Solve for x
    x = 16,733,463,309.64/138,601.33
  6. Step 6: Final answer
    x = 120,730.90

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1.5x scale

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.