Home / 122,462.85-169,006.30-81,556.84

Finding the Fourth Proportional to 122,462.85, 169,006.30 and 81,556.84

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Solution

The fourth proportional to 122,462.85, 169,006.30 and 81,556.84 is: 112,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,462.85 : 169,006.30 = 81,556.84 : x
  2. Step 2: Convert to fraction form
    122,462.85/169,006.30 = 81,556.84/x
  3. Step 3: Cross multiply
    122,462.85x = 169,006.30 × 81,556.84
  4. Step 4: Simplify right side
    122,462.85x = 13,783,619,141.68
  5. Step 5: Solve for x
    x = 13,783,619,141.68/122,462.85
  6. Step 6: Final answer
    x = 112,553.47

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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.