Home / 156,739.74-216,314.22-88,768.62

Finding the Fourth Proportional to 156,739.74, 216,314.22 and 88,768.62

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Solution

The fourth proportional to 156,739.74, 216,314.22 and 88,768.62 is: 122,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.74 : 216,314.22 = 88,768.62 : x
  2. Step 2: Convert to fraction form
    156,739.74/216,314.22 = 88,768.62/x
  3. Step 3: Cross multiply
    156,739.74x = 216,314.22 × 88,768.62
  4. Step 4: Simplify right side
    156,739.74x = 19,201,914,795.78
  5. Step 5: Solve for x
    x = 19,201,914,795.78/156,739.74
  6. Step 6: Final answer
    x = 122,508.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.