Home / 264,003.10-396,004.65-86,515.90

Finding the Fourth Proportional to 264,003.10, 396,004.65 and 86,515.90

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Solution

The fourth proportional to 264,003.10, 396,004.65 and 86,515.90 is: 129,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,003.10 : 396,004.65 = 86,515.90 : x
  2. Step 2: Convert to fraction form
    264,003.10/396,004.65 = 86,515.90/x
  3. Step 3: Cross multiply
    264,003.10x = 396,004.65 × 86,515.90
  4. Step 4: Simplify right side
    264,003.10x = 34,260,698,698.94
  5. Step 5: Solve for x
    x = 34,260,698,698.94/264,003.10
  6. Step 6: Final answer
    x = 129,773.85

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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.