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Finding the Fourth Proportional to 133,388.95, 184,101.38 and 85,701.91

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Solution

The fourth proportional to 133,388.95, 184,101.38 and 85,701.91 is: 118,284.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,388.95 : 184,101.38 = 85,701.91 : x
  2. Step 2: Convert to fraction form
    133,388.95/184,101.38 = 85,701.91/x
  3. Step 3: Cross multiply
    133,388.95x = 184,101.38 × 85,701.91
  4. Step 4: Simplify right side
    133,388.95x = 15,777,839,899.64
  5. Step 5: Solve for x
    x = 15,777,839,899.64/133,388.95
  6. Step 6: Final answer
    x = 118,284.46

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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.