Home / 120,958.02-166,908.70-72,556.74

Finding the Fourth Proportional to 120,958.02, 166,908.70 and 72,556.74

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Solution

The fourth proportional to 120,958.02, 166,908.70 and 72,556.74 is: 100,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,958.02 : 166,908.70 = 72,556.74 : x
  2. Step 2: Convert to fraction form
    120,958.02/166,908.70 = 72,556.74/x
  3. Step 3: Cross multiply
    120,958.02x = 166,908.70 × 72,556.74
  4. Step 4: Simplify right side
    120,958.02x = 12,110,351,149.64
  5. Step 5: Solve for x
    x = 12,110,351,149.64/120,958.02
  6. Step 6: Final answer
    x = 100,120.28

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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.