Home / 133,040.10-199,560.15-115,155.30

Finding the Fourth Proportional to 133,040.10, 199,560.15 and 115,155.30

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Solution

The fourth proportional to 133,040.10, 199,560.15 and 115,155.30 is: 172,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,040.10 : 199,560.15 = 115,155.30 : x
  2. Step 2: Convert to fraction form
    133,040.10/199,560.15 = 115,155.30/x
  3. Step 3: Cross multiply
    133,040.10x = 199,560.15 × 115,155.30
  4. Step 4: Simplify right side
    133,040.10x = 22,980,408,941.30
  5. Step 5: Solve for x
    x = 22,980,408,941.30/133,040.10
  6. Step 6: Final answer
    x = 172,732.95

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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.