Home / 145,110.27-200,241.19-81,435.77

Finding the Fourth Proportional to 145,110.27, 200,241.19 and 81,435.77

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Solution

The fourth proportional to 145,110.27, 200,241.19 and 81,435.77 is: 112,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.27 : 200,241.19 = 81,435.77 : x
  2. Step 2: Convert to fraction form
    145,110.27/200,241.19 = 81,435.77/x
  3. Step 3: Cross multiply
    145,110.27x = 200,241.19 × 81,435.77
  4. Step 4: Simplify right side
    145,110.27x = 16,306,795,493.37
  5. Step 5: Solve for x
    x = 16,306,795,493.37/145,110.27
  6. Step 6: Final answer
    x = 112,375.20

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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.