Home / 133,047.15-199,464.75-76,823.43

Finding the Fourth Proportional to 133,047.15, 199,464.75 and 76,823.43

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Solution

The fourth proportional to 133,047.15, 199,464.75 and 76,823.43 is: 115,173.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,047.15 : 199,464.75 = 76,823.43 : x
  2. Step 2: Convert to fraction form
    133,047.15/199,464.75 = 76,823.43/x
  3. Step 3: Cross multiply
    133,047.15x = 199,464.75 × 76,823.43
  4. Step 4: Simplify right side
    133,047.15x = 15,323,566,259.09
  5. Step 5: Solve for x
    x = 15,323,566,259.09/133,047.15
  6. Step 6: Final answer
    x = 115,173.95

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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.