Home / 120,719.94-166,601.90-69,749.88

Finding the Fourth Proportional to 120,719.94, 166,601.90 and 69,749.88

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Solution

The fourth proportional to 120,719.94, 166,601.90 and 69,749.88 is: 96,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,719.94 : 166,601.90 = 69,749.88 : x
  2. Step 2: Convert to fraction form
    120,719.94/166,601.90 = 69,749.88/x
  3. Step 3: Cross multiply
    120,719.94x = 166,601.90 × 69,749.88
  4. Step 4: Simplify right side
    120,719.94x = 11,620,462,532.77
  5. Step 5: Solve for x
    x = 11,620,462,532.77/120,719.94
  6. Step 6: Final answer
    x = 96,259.68

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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.