Home / 145,546.13-200,853.36-81,884

Finding the Fourth Proportional to 145,546.13, 200,853.36 and 81,884

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Solution

The fourth proportional to 145,546.13, 200,853.36 and 81,884 is: 112,999.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,546.13 : 200,853.36 = 81,884 : x
  2. Step 2: Convert to fraction form
    145,546.13/200,853.36 = 81,884/x
  3. Step 3: Cross multiply
    145,546.13x = 200,853.36 × 81,884
  4. Step 4: Simplify right side
    145,546.13x = 16,446,676,530.24
  5. Step 5: Solve for x
    x = 16,446,676,530.24/145,546.13
  6. Step 6: Final answer
    x = 112,999.75

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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.