Home / 108,871.84-150,243.04-61,125.28

Finding the Fourth Proportional to 108,871.84, 150,243.04 and 61,125.28

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Solution

The fourth proportional to 108,871.84, 150,243.04 and 61,125.28 is: 84,352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871.84 : 150,243.04 = 61,125.28 : x
  2. Step 2: Convert to fraction form
    108,871.84/150,243.04 = 61,125.28/x
  3. Step 3: Cross multiply
    108,871.84x = 150,243.04 × 61,125.28
  4. Step 4: Simplify right side
    108,871.84x = 9,183,647,888.05
  5. Step 5: Solve for x
    x = 9,183,647,888.05/108,871.84
  6. Step 6: Final answer
    x = 84,352.83

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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.