Home / 133,865.81-184,583.41-85,402.96

Finding the Fourth Proportional to 133,865.81, 184,583.41 and 85,402.96

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Solution

The fourth proportional to 133,865.81, 184,583.41 and 85,402.96 is: 117,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,865.81 : 184,583.41 = 85,402.96 : x
  2. Step 2: Convert to fraction form
    133,865.81/184,583.41 = 85,402.96/x
  3. Step 3: Cross multiply
    133,865.81x = 184,583.41 × 85,402.96
  4. Step 4: Simplify right side
    133,865.81x = 15,763,968,905.93
  5. Step 5: Solve for x
    x = 15,763,968,905.93/133,865.81
  6. Step 6: Final answer
    x = 117,759.48

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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.