Home / 120,856.64-166,782.33-67,140.27

Finding the Fourth Proportional to 120,856.64, 166,782.33 and 67,140.27

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Solution

The fourth proportional to 120,856.64, 166,782.33 and 67,140.27 is: 92,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,856.64 : 166,782.33 = 67,140.27 : x
  2. Step 2: Convert to fraction form
    120,856.64/166,782.33 = 67,140.27/x
  3. Step 3: Cross multiply
    120,856.64x = 166,782.33 × 67,140.27
  4. Step 4: Simplify right side
    120,856.64x = 11,197,810,667.43
  5. Step 5: Solve for x
    x = 11,197,810,667.43/120,856.64
  6. Step 6: Final answer
    x = 92,653.67

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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.