Home / 120,707.20-166,738.26-92,762.20

Finding the Fourth Proportional to 120,707.20, 166,738.26 and 92,762.20

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Solution

The fourth proportional to 120,707.20, 166,738.26 and 92,762.20 is: 128,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,707.20 : 166,738.26 = 92,762.20 : x
  2. Step 2: Convert to fraction form
    120,707.20/166,738.26 = 92,762.20/x
  3. Step 3: Cross multiply
    120,707.20x = 166,738.26 × 92,762.20
  4. Step 4: Simplify right side
    120,707.20x = 15,467,007,821.77
  5. Step 5: Solve for x
    x = 15,467,007,821.77/120,707.20
  6. Step 6: Final answer
    x = 128,136.58

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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.