Home / 231,148.12-318,990.72-130,546.12

Finding the Fourth Proportional to 231,148.12, 318,990.72 and 130,546.12

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Solution

The fourth proportional to 231,148.12, 318,990.72 and 130,546.12 is: 180,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,148.12 : 318,990.72 = 130,546.12 : x
  2. Step 2: Convert to fraction form
    231,148.12/318,990.72 = 130,546.12/x
  3. Step 3: Cross multiply
    231,148.12x = 318,990.72 × 130,546.12
  4. Step 4: Simplify right side
    231,148.12x = 41,643,000,812.01
  5. Step 5: Solve for x
    x = 41,643,000,812.01/231,148.12
  6. Step 6: Final answer
    x = 180,157.21

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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.