Home / 130,986.72-196,482.24-47,880

Finding the Fourth Proportional to 130,986.72, 196,482.24 and 47,880

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Solution

The fourth proportional to 130,986.72, 196,482.24 and 47,880 is: 71,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,986.72 : 196,482.24 = 47,880 : x
  2. Step 2: Convert to fraction form
    130,986.72/196,482.24 = 47,880/x
  3. Step 3: Cross multiply
    130,986.72x = 196,482.24 × 47,880
  4. Step 4: Simplify right side
    130,986.72x = 9,407,569,651.20
  5. Step 5: Solve for x
    x = 9,407,569,651.20/130,986.72
  6. Step 6: Final answer
    x = 71,820.79

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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.