Home / 145,654.12-200,998.02-81,983.26

Finding the Fourth Proportional to 145,654.12, 200,998.02 and 81,983.26

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Solution

The fourth proportional to 145,654.12, 200,998.02 and 81,983.26 is: 113,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,654.12 : 200,998.02 = 81,983.26 : x
  2. Step 2: Convert to fraction form
    145,654.12/200,998.02 = 81,983.26/x
  3. Step 3: Cross multiply
    145,654.12x = 200,998.02 × 81,983.26
  4. Step 4: Simplify right side
    145,654.12x = 16,478,472,933.15
  5. Step 5: Solve for x
    x = 16,478,472,933.15/145,654.12
  6. Step 6: Final answer
    x = 113,134.27

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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.