Home / 109,412.08-150,996.96-61,669.92

Finding the Fourth Proportional to 109,412.08, 150,996.96 and 61,669.92

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Solution

The fourth proportional to 109,412.08, 150,996.96 and 61,669.92 is: 85,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,412.08 : 150,996.96 = 61,669.92 : x
  2. Step 2: Convert to fraction form
    109,412.08/150,996.96 = 61,669.92/x
  3. Step 3: Cross multiply
    109,412.08x = 150,996.96 × 61,669.92
  4. Step 4: Simplify right side
    109,412.08x = 9,311,970,443.44
  5. Step 5: Solve for x
    x = 9,311,970,443.44/109,412.08
  6. Step 6: Final answer
    x = 85,109.16

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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.