Home / 122,643.39-169,261.86-68,200.95

Finding the Fourth Proportional to 122,643.39, 169,261.86 and 68,200.95

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Solution

The fourth proportional to 122,643.39, 169,261.86 and 68,200.95 is: 94,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,643.39 : 169,261.86 = 68,200.95 : x
  2. Step 2: Convert to fraction form
    122,643.39/169,261.86 = 68,200.95/x
  3. Step 3: Cross multiply
    122,643.39x = 169,261.86 × 68,200.95
  4. Step 4: Simplify right side
    122,643.39x = 11,543,819,650.77
  5. Step 5: Solve for x
    x = 11,543,819,650.77/122,643.39
  6. Step 6: Final answer
    x = 94,125.09

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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.