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Finding the Fourth Proportional to 134,607.96, 185,750.10 and 80,861.16

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Solution

The fourth proportional to 134,607.96, 185,750.10 and 80,861.16 is: 111,583.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,607.96 : 185,750.10 = 80,861.16 : x
  2. Step 2: Convert to fraction form
    134,607.96/185,750.10 = 80,861.16/x
  3. Step 3: Cross multiply
    134,607.96x = 185,750.10 × 80,861.16
  4. Step 4: Simplify right side
    134,607.96x = 15,019,968,556.12
  5. Step 5: Solve for x
    x = 15,019,968,556.12/134,607.96
  6. Step 6: Final answer
    x = 111,583.06

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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.