Home / 145,558.35-200,856.24-81,894.78

Finding the Fourth Proportional to 145,558.35, 200,856.24 and 81,894.78

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Solution

The fourth proportional to 145,558.35, 200,856.24 and 81,894.78 is: 113,006.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,558.35 : 200,856.24 = 81,894.78 : x
  2. Step 2: Convert to fraction form
    145,558.35/200,856.24 = 81,894.78/x
  3. Step 3: Cross multiply
    145,558.35x = 200,856.24 × 81,894.78
  4. Step 4: Simplify right side
    145,558.35x = 16,449,077,586.43
  5. Step 5: Solve for x
    x = 16,449,077,586.43/145,558.35
  6. Step 6: Final answer
    x = 113,006.76

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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.