Home / 115,107.08-172,648.60-30,876.26

Finding the Fourth Proportional to 115,107.08, 172,648.60 and 30,876.26

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Solution

The fourth proportional to 115,107.08, 172,648.60 and 30,876.26 is: 46,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,107.08 : 172,648.60 = 30,876.26 : x
  2. Step 2: Convert to fraction form
    115,107.08/172,648.60 = 30,876.26/x
  3. Step 3: Cross multiply
    115,107.08x = 172,648.60 × 30,876.26
  4. Step 4: Simplify right side
    115,107.08x = 5,330,742,121.80
  5. Step 5: Solve for x
    x = 5,330,742,121.80/115,107.08
  6. Step 6: Final answer
    x = 46,311.16

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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.