Home / 172,736.86-258,520.04-106,219.12

Finding the Fourth Proportional to 172,736.86, 258,520.04 and 106,219.12

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Solution

The fourth proportional to 172,736.86, 258,520.04 and 106,219.12 is: 158,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,736.86 : 258,520.04 = 106,219.12 : x
  2. Step 2: Convert to fraction form
    172,736.86/258,520.04 = 106,219.12/x
  3. Step 3: Cross multiply
    172,736.86x = 258,520.04 × 106,219.12
  4. Step 4: Simplify right side
    172,736.86x = 27,459,771,151.16
  5. Step 5: Solve for x
    x = 27,459,771,151.16/172,736.86
  6. Step 6: Final answer
    x = 158,968.80

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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.