Home / 130,010.56-194,977.20-55,129.60

Finding the Fourth Proportional to 130,010.56, 194,977.20 and 55,129.60

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Solution

The fourth proportional to 130,010.56, 194,977.20 and 55,129.60 is: 82,678.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.56 : 194,977.20 = 55,129.60 : x
  2. Step 2: Convert to fraction form
    130,010.56/194,977.20 = 55,129.60/x
  3. Step 3: Cross multiply
    130,010.56x = 194,977.20 × 55,129.60
  4. Step 4: Simplify right side
    130,010.56x = 10,749,015,045.12
  5. Step 5: Solve for x
    x = 10,749,015,045.12/130,010.56
  6. Step 6: Final answer
    x = 82,678.02

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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.