Home / 108,107.31-149,148.56-62,769.15

Finding the Fourth Proportional to 108,107.31, 149,148.56 and 62,769.15

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Solution

The fourth proportional to 108,107.31, 149,148.56 and 62,769.15 is: 86,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,107.31 : 149,148.56 = 62,769.15 : x
  2. Step 2: Convert to fraction form
    108,107.31/149,148.56 = 62,769.15/x
  3. Step 3: Cross multiply
    108,107.31x = 149,148.56 × 62,769.15
  4. Step 4: Simplify right side
    108,107.31x = 9,361,928,021.08
  5. Step 5: Solve for x
    x = 9,361,928,021.08/108,107.31
  6. Step 6: Final answer
    x = 86,598.47

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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.