Home / 145,581.32-200,885.94-81,941

Finding the Fourth Proportional to 145,581.32, 200,885.94 and 81,941

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Solution

The fourth proportional to 145,581.32, 200,885.94 and 81,941 is: 113,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,581.32 : 200,885.94 = 81,941 : x
  2. Step 2: Convert to fraction form
    145,581.32/200,885.94 = 81,941/x
  3. Step 3: Cross multiply
    145,581.32x = 200,885.94 × 81,941
  4. Step 4: Simplify right side
    145,581.32x = 16,460,794,809.54
  5. Step 5: Solve for x
    x = 16,460,794,809.54/145,581.32
  6. Step 6: Final answer
    x = 113,069.42

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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.