Home / 145,588.24-200,909.64-81,921.04

Finding the Fourth Proportional to 145,588.24, 200,909.64 and 81,921.04

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Solution

The fourth proportional to 145,588.24, 200,909.64 and 81,921.04 is: 113,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,588.24 : 200,909.64 = 81,921.04 : x
  2. Step 2: Convert to fraction form
    145,588.24/200,909.64 = 81,921.04/x
  3. Step 3: Cross multiply
    145,588.24x = 200,909.64 × 81,921.04
  4. Step 4: Simplify right side
    145,588.24x = 16,458,726,654.83
  5. Step 5: Solve for x
    x = 16,458,726,654.83/145,588.24
  6. Step 6: Final answer
    x = 113,049.84

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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.