Home / 120,601.20-166,439.86-66,903.50

Finding the Fourth Proportional to 120,601.20, 166,439.86 and 66,903.50

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Solution

The fourth proportional to 120,601.20, 166,439.86 and 66,903.50 is: 92,332.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,601.20 : 166,439.86 = 66,903.50 : x
  2. Step 2: Convert to fraction form
    120,601.20/166,439.86 = 66,903.50/x
  3. Step 3: Cross multiply
    120,601.20x = 166,439.86 × 66,903.50
  4. Step 4: Simplify right side
    120,601.20x = 11,135,409,173.51
  5. Step 5: Solve for x
    x = 11,135,409,173.51/120,601.20
  6. Step 6: Final answer
    x = 92,332.49

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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.