Home / 109,680.36-151,358.22-59,379

Finding the Fourth Proportional to 109,680.36, 151,358.22 and 59,379

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Solution

The fourth proportional to 109,680.36, 151,358.22 and 59,379 is: 81,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,680.36 : 151,358.22 = 59,379 : x
  2. Step 2: Convert to fraction form
    109,680.36/151,358.22 = 59,379/x
  3. Step 3: Cross multiply
    109,680.36x = 151,358.22 × 59,379
  4. Step 4: Simplify right side
    109,680.36x = 8,987,499,745.38
  5. Step 5: Solve for x
    x = 8,987,499,745.38/109,680.36
  6. Step 6: Final answer
    x = 81,942.65

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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.