Home / 133,634.40-184,415.31-72,380.56

Finding the Fourth Proportional to 133,634.40, 184,415.31 and 72,380.56

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Solution

The fourth proportional to 133,634.40, 184,415.31 and 72,380.56 is: 99,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,634.40 : 184,415.31 = 72,380.56 : x
  2. Step 2: Convert to fraction form
    133,634.40/184,415.31 = 72,380.56/x
  3. Step 3: Cross multiply
    133,634.40x = 184,415.31 × 72,380.56
  4. Step 4: Simplify right side
    133,634.40x = 13,348,083,410.37
  5. Step 5: Solve for x
    x = 13,348,083,410.37/133,634.40
  6. Step 6: Final answer
    x = 99,885.09

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1.5x scale

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.