Home / 120,771.81-166,661.92-67,055.45

Finding the Fourth Proportional to 120,771.81, 166,661.92 and 67,055.45

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Solution

The fourth proportional to 120,771.81, 166,661.92 and 67,055.45 is: 92,534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771.81 : 166,661.92 = 67,055.45 : x
  2. Step 2: Convert to fraction form
    120,771.81/166,661.92 = 67,055.45/x
  3. Step 3: Cross multiply
    120,771.81x = 166,661.92 × 67,055.45
  4. Step 4: Simplify right side
    120,771.81x = 11,175,590,043.46
  5. Step 5: Solve for x
    x = 11,175,590,043.46/120,771.81
  6. Step 6: Final answer
    x = 92,534.76

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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.