Home / 167,434.20-251,175.60-78,690.60

Finding the Fourth Proportional to 167,434.20, 251,175.60 and 78,690.60

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Solution

The fourth proportional to 167,434.20, 251,175.60 and 78,690.60 is: 118,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,434.20 : 251,175.60 = 78,690.60 : x
  2. Step 2: Convert to fraction form
    167,434.20/251,175.60 = 78,690.60/x
  3. Step 3: Cross multiply
    167,434.20x = 251,175.60 × 78,690.60
  4. Step 4: Simplify right side
    167,434.20x = 19,765,158,669.36
  5. Step 5: Solve for x
    x = 19,765,158,669.36/167,434.20
  6. Step 6: Final answer
    x = 118,047.32

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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.