Home / 133,611.46-184,338.05-76,209.54

Finding the Fourth Proportional to 133,611.46, 184,338.05 and 76,209.54

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Solution

The fourth proportional to 133,611.46, 184,338.05 and 76,209.54 is: 105,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,611.46 : 184,338.05 = 76,209.54 : x
  2. Step 2: Convert to fraction form
    133,611.46/184,338.05 = 76,209.54/x
  3. Step 3: Cross multiply
    133,611.46x = 184,338.05 × 76,209.54
  4. Step 4: Simplify right side
    133,611.46x = 14,048,316,692.26
  5. Step 5: Solve for x
    x = 14,048,316,692.26/133,611.46
  6. Step 6: Final answer
    x = 105,143.05

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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.