Home / 231,154.12-318,999-130,552.12

Finding the Fourth Proportional to 231,154.12, 318,999 and 130,552.12

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Solution

The fourth proportional to 231,154.12, 318,999 and 130,552.12 is: 180,165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,154.12 : 318,999 = 130,552.12 : x
  2. Step 2: Convert to fraction form
    231,154.12/318,999 = 130,552.12/x
  3. Step 3: Cross multiply
    231,154.12x = 318,999 × 130,552.12
  4. Step 4: Simplify right side
    231,154.12x = 41,645,995,727.88
  5. Step 5: Solve for x
    x = 41,645,995,727.88/231,154.12
  6. Step 6: Final answer
    x = 180,165.49

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1.5x scale

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.