Home / 122,971.44-169,704-75,223.92

Finding the Fourth Proportional to 122,971.44, 169,704 and 75,223.92

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Solution

The fourth proportional to 122,971.44, 169,704 and 75,223.92 is: 103,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,971.44 : 169,704 = 75,223.92 : x
  2. Step 2: Convert to fraction form
    122,971.44/169,704 = 75,223.92/x
  3. Step 3: Cross multiply
    122,971.44x = 169,704 × 75,223.92
  4. Step 4: Simplify right side
    122,971.44x = 12,765,800,119.68
  5. Step 5: Solve for x
    x = 12,765,800,119.68/122,971.44
  6. Step 6: Final answer
    x = 103,811.10

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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.