Home / 144,826.78-199,868.85-81,185.02

Finding the Fourth Proportional to 144,826.78, 199,868.85 and 81,185.02

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Solution

The fourth proportional to 144,826.78, 199,868.85 and 81,185.02 is: 112,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,826.78 : 199,868.85 = 81,185.02 : x
  2. Step 2: Convert to fraction form
    144,826.78/199,868.85 = 81,185.02/x
  3. Step 3: Cross multiply
    144,826.78x = 199,868.85 × 81,185.02
  4. Step 4: Simplify right side
    144,826.78x = 16,226,356,584.63
  5. Step 5: Solve for x
    x = 16,226,356,584.63/144,826.78
  6. Step 6: Final answer
    x = 112,039.75

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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.