Home / 109,169.10-150,647.04-61,420.41

Finding the Fourth Proportional to 109,169.10, 150,647.04 and 61,420.41

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Solution

The fourth proportional to 109,169.10, 150,647.04 and 61,420.41 is: 84,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,169.10 : 150,647.04 = 61,420.41 : x
  2. Step 2: Convert to fraction form
    109,169.10/150,647.04 = 61,420.41/x
  3. Step 3: Cross multiply
    109,169.10x = 150,647.04 × 61,420.41
  4. Step 4: Simplify right side
    109,169.10x = 9,252,802,962.09
  5. Step 5: Solve for x
    x = 9,252,802,962.09/109,169.10
  6. Step 6: Final answer
    x = 84,756.61

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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.