Home / 144,890.88-199,949.28-81,228.69

Finding the Fourth Proportional to 144,890.88, 199,949.28 and 81,228.69

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Solution

The fourth proportional to 144,890.88, 199,949.28 and 81,228.69 is: 112,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.88 : 199,949.28 = 81,228.69 : x
  2. Step 2: Convert to fraction form
    144,890.88/199,949.28 = 81,228.69/x
  3. Step 3: Cross multiply
    144,890.88x = 199,949.28 × 81,228.69
  4. Step 4: Simplify right side
    144,890.88x = 16,241,618,080.84
  5. Step 5: Solve for x
    x = 16,241,618,080.84/144,890.88
  6. Step 6: Final answer
    x = 112,095.52

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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.