Home / 144,890.23-199,958.12-81,232.15

Finding the Fourth Proportional to 144,890.23, 199,958.12 and 81,232.15

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Solution

The fourth proportional to 144,890.23, 199,958.12 and 81,232.15 is: 112,105.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.23 : 199,958.12 = 81,232.15 : x
  2. Step 2: Convert to fraction form
    144,890.23/199,958.12 = 81,232.15/x
  3. Step 3: Cross multiply
    144,890.23x = 199,958.12 × 81,232.15
  4. Step 4: Simplify right side
    144,890.23x = 16,243,027,591.40
  5. Step 5: Solve for x
    x = 16,243,027,591.40/144,890.23
  6. Step 6: Final answer
    x = 112,105.75

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1.5x scale

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.