Home / 130,015.10-194,694.60-103,771.10

Finding the Fourth Proportional to 130,015.10, 194,694.60 and 103,771.10

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Solution

The fourth proportional to 130,015.10, 194,694.60 and 103,771.10 is: 155,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.10 : 194,694.60 = 103,771.10 : x
  2. Step 2: Convert to fraction form
    130,015.10/194,694.60 = 103,771.10/x
  3. Step 3: Cross multiply
    130,015.10x = 194,694.60 × 103,771.10
  4. Step 4: Simplify right side
    130,015.10x = 20,203,672,806.06
  5. Step 5: Solve for x
    x = 20,203,672,806.06/130,015.10
  6. Step 6: Final answer
    x = 155,394.82

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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.