Home / 115,010.12-172,520.06-40,137.80

Finding the Fourth Proportional to 115,010.12, 172,520.06 and 40,137.80

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Solution

The fourth proportional to 115,010.12, 172,520.06 and 40,137.80 is: 60,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,010.12 : 172,520.06 = 40,137.80 : x
  2. Step 2: Convert to fraction form
    115,010.12/172,520.06 = 40,137.80/x
  3. Step 3: Cross multiply
    115,010.12x = 172,520.06 × 40,137.80
  4. Step 4: Simplify right side
    115,010.12x = 6,924,575,664.27
  5. Step 5: Solve for x
    x = 6,924,575,664.27/115,010.12
  6. Step 6: Final answer
    x = 60,208.40

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1.5x scale

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.