Home / 123,031.10-184,546.65-85,706.30

Finding the Fourth Proportional to 123,031.10, 184,546.65 and 85,706.30

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Solution

The fourth proportional to 123,031.10, 184,546.65 and 85,706.30 is: 128,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,031.10 : 184,546.65 = 85,706.30 : x
  2. Step 2: Convert to fraction form
    123,031.10/184,546.65 = 85,706.30/x
  3. Step 3: Cross multiply
    123,031.10x = 184,546.65 × 85,706.30
  4. Step 4: Simplify right side
    123,031.10x = 15,816,810,548.90
  5. Step 5: Solve for x
    x = 15,816,810,548.90/123,031.10
  6. Step 6: Final answer
    x = 128,559.45

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Similar ratio
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1.5x scale

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.