Home / 145,179.08-200,341.94-81,519.56

Finding the Fourth Proportional to 145,179.08, 200,341.94 and 81,519.56

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Solution

The fourth proportional to 145,179.08, 200,341.94 and 81,519.56 is: 112,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,179.08 : 200,341.94 = 81,519.56 : x
  2. Step 2: Convert to fraction form
    145,179.08/200,341.94 = 81,519.56/x
  3. Step 3: Cross multiply
    145,179.08x = 200,341.94 × 81,519.56
  4. Step 4: Simplify right side
    145,179.08x = 16,331,786,798.35
  5. Step 5: Solve for x
    x = 16,331,786,798.35/145,179.08
  6. Step 6: Final answer
    x = 112,494.08

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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.