Home / 115,038.60-172,608.12-40,212.44

Finding the Fourth Proportional to 115,038.60, 172,608.12 and 40,212.44

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Solution

The fourth proportional to 115,038.60, 172,608.12 and 40,212.44 is: 60,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,038.60 : 172,608.12 = 40,212.44 : x
  2. Step 2: Convert to fraction form
    115,038.60/172,608.12 = 40,212.44/x
  3. Step 3: Cross multiply
    115,038.60x = 172,608.12 × 40,212.44
  4. Step 4: Simplify right side
    115,038.60x = 6,940,993,669.01
  5. Step 5: Solve for x
    x = 6,940,993,669.01/115,038.60
  6. Step 6: Final answer
    x = 60,336.21

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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.