Home / 100,680.32-151,016.99-25,801.08

Finding the Fourth Proportional to 100,680.32, 151,016.99 and 25,801.08

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Solution

The fourth proportional to 100,680.32, 151,016.99 and 25,801.08 is: 38,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,680.32 : 151,016.99 = 25,801.08 : x
  2. Step 2: Convert to fraction form
    100,680.32/151,016.99 = 25,801.08/x
  3. Step 3: Cross multiply
    100,680.32x = 151,016.99 × 25,801.08
  4. Step 4: Simplify right side
    100,680.32x = 3,896,401,311.34
  5. Step 5: Solve for x
    x = 3,896,401,311.34/100,680.32
  6. Step 6: Final answer
    x = 38,700.73

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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.