Home / 100,700.20-151,040.52-30,580.12

Finding the Fourth Proportional to 100,700.20, 151,040.52 and 30,580.12

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Solution

The fourth proportional to 100,700.20, 151,040.52 and 30,580.12 is: 45,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,700.20 : 151,040.52 = 30,580.12 : x
  2. Step 2: Convert to fraction form
    100,700.20/151,040.52 = 30,580.12/x
  3. Step 3: Cross multiply
    100,700.20x = 151,040.52 × 30,580.12
  4. Step 4: Simplify right side
    100,700.20x = 4,618,837,226.46
  5. Step 5: Solve for x
    x = 4,618,837,226.46/100,700.20
  6. Step 6: Final answer
    x = 45,867.21

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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.