Home / 120,885.37-166,812.03-69,901.40

Finding the Fourth Proportional to 120,885.37, 166,812.03 and 69,901.40

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Solution

The fourth proportional to 120,885.37, 166,812.03 and 69,901.40 is: 96,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,885.37 : 166,812.03 = 69,901.40 : x
  2. Step 2: Convert to fraction form
    120,885.37/166,812.03 = 69,901.40/x
  3. Step 3: Cross multiply
    120,885.37x = 166,812.03 × 69,901.40
  4. Step 4: Simplify right side
    120,885.37x = 11,660,394,433.84
  5. Step 5: Solve for x
    x = 11,660,394,433.84/120,885.37
  6. Step 6: Final answer
    x = 96,458.28

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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.