Home / 112,114.20-167,879.70-72,456.60

Finding the Fourth Proportional to 112,114.20, 167,879.70 and 72,456.60

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Solution

The fourth proportional to 112,114.20, 167,879.70 and 72,456.60 is: 108,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,114.20 : 167,879.70 = 72,456.60 : x
  2. Step 2: Convert to fraction form
    112,114.20/167,879.70 = 72,456.60/x
  3. Step 3: Cross multiply
    112,114.20x = 167,879.70 × 72,456.60
  4. Step 4: Simplify right side
    112,114.20x = 12,163,992,271.02
  5. Step 5: Solve for x
    x = 12,163,992,271.02/112,114.20
  6. Step 6: Final answer
    x = 108,496.45

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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.