Home / 108,262.76-162,435.74-76,272.58

Finding the Fourth Proportional to 108,262.76, 162,435.74 and 76,272.58

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Solution

The fourth proportional to 108,262.76, 162,435.74 and 76,272.58 is: 114,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,262.76 : 162,435.74 = 76,272.58 : x
  2. Step 2: Convert to fraction form
    108,262.76/162,435.74 = 76,272.58/x
  3. Step 3: Cross multiply
    108,262.76x = 162,435.74 × 76,272.58
  4. Step 4: Simplify right side
    108,262.76x = 12,389,392,974.01
  5. Step 5: Solve for x
    x = 12,389,392,974.01/108,262.76
  6. Step 6: Final answer
    x = 114,438.18

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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.