Home / 108,078.64-149,147.96-62,767.76

Finding the Fourth Proportional to 108,078.64, 149,147.96 and 62,767.76

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Solution

The fourth proportional to 108,078.64, 149,147.96 and 62,767.76 is: 86,619.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,078.64 : 149,147.96 = 62,767.76 : x
  2. Step 2: Convert to fraction form
    108,078.64/149,147.96 = 62,767.76/x
  3. Step 3: Cross multiply
    108,078.64x = 149,147.96 × 62,767.76
  4. Step 4: Simplify right side
    108,078.64x = 9,361,683,357.77
  5. Step 5: Solve for x
    x = 9,361,683,357.77/108,078.64
  6. Step 6: Final answer
    x = 86,619.18

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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.