Home / 167,518.10-251,321.70-72,707.60

Finding the Fourth Proportional to 167,518.10, 251,321.70 and 72,707.60

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Solution

The fourth proportional to 167,518.10, 251,321.70 and 72,707.60 is: 109,080.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,518.10 : 251,321.70 = 72,707.60 : x
  2. Step 2: Convert to fraction form
    167,518.10/251,321.70 = 72,707.60/x
  3. Step 3: Cross multiply
    167,518.10x = 251,321.70 × 72,707.60
  4. Step 4: Simplify right side
    167,518.10x = 18,272,997,634.92
  5. Step 5: Solve for x
    x = 18,272,997,634.92/167,518.10
  6. Step 6: Final answer
    x = 109,080.74

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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.