Home / 86,186.10-129,279.15-23,856.60

Finding the Fourth Proportional to 86,186.10, 129,279.15 and 23,856.60

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Solution

The fourth proportional to 86,186.10, 129,279.15 and 23,856.60 is: 35,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.10 : 129,279.15 = 23,856.60 : x
  2. Step 2: Convert to fraction form
    86,186.10/129,279.15 = 23,856.60/x
  3. Step 3: Cross multiply
    86,186.10x = 129,279.15 × 23,856.60
  4. Step 4: Simplify right side
    86,186.10x = 3,084,160,969.89
  5. Step 5: Solve for x
    x = 3,084,160,969.89/86,186.10
  6. Step 6: Final answer
    x = 35,784.90

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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.