Home / 120,571.24-166,389.70-66,856.84

Finding the Fourth Proportional to 120,571.24, 166,389.70 and 66,856.84

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Solution

The fourth proportional to 120,571.24, 166,389.70 and 66,856.84 is: 92,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,571.24 : 166,389.70 = 66,856.84 : x
  2. Step 2: Convert to fraction form
    120,571.24/166,389.70 = 66,856.84/x
  3. Step 3: Cross multiply
    120,571.24x = 166,389.70 × 66,856.84
  4. Step 4: Simplify right side
    120,571.24x = 11,124,289,550.55
  5. Step 5: Solve for x
    x = 11,124,289,550.55/120,571.24
  6. Step 6: Final answer
    x = 92,263.21

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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.