Home / 122,669.45-169,284.78-68,222.38

Finding the Fourth Proportional to 122,669.45, 169,284.78 and 68,222.38

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Solution

The fourth proportional to 122,669.45, 169,284.78 and 68,222.38 is: 94,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,669.45 : 169,284.78 = 68,222.38 : x
  2. Step 2: Convert to fraction form
    122,669.45/169,284.78 = 68,222.38/x
  3. Step 3: Cross multiply
    122,669.45x = 169,284.78 × 68,222.38
  4. Step 4: Simplify right side
    122,669.45x = 11,549,010,671.48
  5. Step 5: Solve for x
    x = 11,549,010,671.48/122,669.45
  6. Step 6: Final answer
    x = 94,147.41

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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.