Home / 132,719.94-199,067.76-85,210.20

Finding the Fourth Proportional to 132,719.94, 199,067.76 and 85,210.20

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Solution

The fourth proportional to 132,719.94, 199,067.76 and 85,210.20 is: 127,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,719.94 : 199,067.76 = 85,210.20 : x
  2. Step 2: Convert to fraction form
    132,719.94/199,067.76 = 85,210.20/x
  3. Step 3: Cross multiply
    132,719.94x = 199,067.76 × 85,210.20
  4. Step 4: Simplify right side
    132,719.94x = 16,962,603,643.15
  5. Step 5: Solve for x
    x = 16,962,603,643.15/132,719.94
  6. Step 6: Final answer
    x = 127,807.50

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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.