Home / 143,272.37-197,714.44-79,608.80

Finding the Fourth Proportional to 143,272.37, 197,714.44 and 79,608.80

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Solution

The fourth proportional to 143,272.37, 197,714.44 and 79,608.80 is: 109,859.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,272.37 : 197,714.44 = 79,608.80 : x
  2. Step 2: Convert to fraction form
    143,272.37/197,714.44 = 79,608.80/x
  3. Step 3: Cross multiply
    143,272.37x = 197,714.44 × 79,608.80
  4. Step 4: Simplify right side
    143,272.37x = 15,739,809,311.07
  5. Step 5: Solve for x
    x = 15,739,809,311.07/143,272.37
  6. Step 6: Final answer
    x = 109,859.35

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1.5x scale

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.