Home / 108,860.54-150,219.48-61,121.20

Finding the Fourth Proportional to 108,860.54, 150,219.48 and 61,121.20

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Solution

The fourth proportional to 108,860.54, 150,219.48 and 61,121.20 is: 84,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,860.54 : 150,219.48 = 61,121.20 : x
  2. Step 2: Convert to fraction form
    108,860.54/150,219.48 = 61,121.20/x
  3. Step 3: Cross multiply
    108,860.54x = 150,219.48 × 61,121.20
  4. Step 4: Simplify right side
    108,860.54x = 9,181,594,880.98
  5. Step 5: Solve for x
    x = 9,181,594,880.98/108,860.54
  6. Step 6: Final answer
    x = 84,342.73

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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.