Home / 113,704.40-170,556.60-61,138.64

Finding the Fourth Proportional to 113,704.40, 170,556.60 and 61,138.64

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Solution

The fourth proportional to 113,704.40, 170,556.60 and 61,138.64 is: 91,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,704.40 : 170,556.60 = 61,138.64 : x
  2. Step 2: Convert to fraction form
    113,704.40/170,556.60 = 61,138.64/x
  3. Step 3: Cross multiply
    113,704.40x = 170,556.60 × 61,138.64
  4. Step 4: Simplify right side
    113,704.40x = 10,427,598,567.02
  5. Step 5: Solve for x
    x = 10,427,598,567.02/113,704.40
  6. Step 6: Final answer
    x = 91,707.96

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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.