Home / 122,516.86-169,077.36-68,811.34

Finding the Fourth Proportional to 122,516.86, 169,077.36 and 68,811.34

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Solution

The fourth proportional to 122,516.86, 169,077.36 and 68,811.34 is: 94,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,516.86 : 169,077.36 = 68,811.34 : x
  2. Step 2: Convert to fraction form
    122,516.86/169,077.36 = 68,811.34/x
  3. Step 3: Cross multiply
    122,516.86x = 169,077.36 × 68,811.34
  4. Step 4: Simplify right side
    122,516.86x = 11,634,439,705.26
  5. Step 5: Solve for x
    x = 11,634,439,705.26/122,516.86
  6. Step 6: Final answer
    x = 94,961.95

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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.