Home / 130,231.20-195,366.32-47,144.64

Finding the Fourth Proportional to 130,231.20, 195,366.32 and 47,144.64

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Solution

The fourth proportional to 130,231.20, 195,366.32 and 47,144.64 is: 70,724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,231.20 : 195,366.32 = 47,144.64 : x
  2. Step 2: Convert to fraction form
    130,231.20/195,366.32 = 47,144.64/x
  3. Step 3: Cross multiply
    130,231.20x = 195,366.32 × 47,144.64
  4. Step 4: Simplify right side
    130,231.20x = 9,210,474,824.52
  5. Step 5: Solve for x
    x = 9,210,474,824.52/130,231.20
  6. Step 6: Final answer
    x = 70,724.03

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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.