Home / 115,020.11-172,423.90-61,749.58

Finding the Fourth Proportional to 115,020.11, 172,423.90 and 61,749.58

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Solution

The fourth proportional to 115,020.11, 172,423.90 and 61,749.58 is: 92,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,020.11 : 172,423.90 = 61,749.58 : x
  2. Step 2: Convert to fraction form
    115,020.11/172,423.90 = 61,749.58/x
  3. Step 3: Cross multiply
    115,020.11x = 172,423.90 × 61,749.58
  4. Step 4: Simplify right side
    115,020.11x = 10,647,103,406.96
  5. Step 5: Solve for x
    x = 10,647,103,406.96/115,020.11
  6. Step 6: Final answer
    x = 92,567.32

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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.