Home / 145,198.88-200,359.52-81,536.16

Finding the Fourth Proportional to 145,198.88, 200,359.52 and 81,536.16

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Solution

The fourth proportional to 145,198.88, 200,359.52 and 81,536.16 is: 112,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,198.88 : 200,359.52 = 81,536.16 : x
  2. Step 2: Convert to fraction form
    145,198.88/200,359.52 = 81,536.16/x
  3. Step 3: Cross multiply
    145,198.88x = 200,359.52 × 81,536.16
  4. Step 4: Simplify right side
    145,198.88x = 16,336,545,880.24
  5. Step 5: Solve for x
    x = 16,336,545,880.24/145,198.88
  6. Step 6: Final answer
    x = 112,511.51

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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.