Home / 134,705.70-201,796.11-81,984.42

Finding the Fourth Proportional to 134,705.70, 201,796.11 and 81,984.42

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Solution

The fourth proportional to 134,705.70, 201,796.11 and 81,984.42 is: 122,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,705.70 : 201,796.11 = 81,984.42 : x
  2. Step 2: Convert to fraction form
    134,705.70/201,796.11 = 81,984.42/x
  3. Step 3: Cross multiply
    134,705.70x = 201,796.11 × 81,984.42
  4. Step 4: Simplify right side
    134,705.70x = 16,544,137,036.61
  5. Step 5: Solve for x
    x = 16,544,137,036.61/134,705.70
  6. Step 6: Final answer
    x = 122,816.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.