Home / 123,416.80-184,979.40-92,215.60

Finding the Fourth Proportional to 123,416.80, 184,979.40 and 92,215.60

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Solution

The fourth proportional to 123,416.80, 184,979.40 and 92,215.60 is: 138,214.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,416.80 : 184,979.40 = 92,215.60 : x
  2. Step 2: Convert to fraction form
    123,416.80/184,979.40 = 92,215.60/x
  3. Step 3: Cross multiply
    123,416.80x = 184,979.40 × 92,215.60
  4. Step 4: Simplify right side
    123,416.80x = 17,057,986,358.64
  5. Step 5: Solve for x
    x = 17,057,986,358.64/123,416.80
  6. Step 6: Final answer
    x = 138,214.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.