Home / 122,520.52-169,064.94-68,811.40

Finding the Fourth Proportional to 122,520.52, 169,064.94 and 68,811.40

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Solution

The fourth proportional to 122,520.52, 169,064.94 and 68,811.40 is: 94,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,520.52 : 169,064.94 = 68,811.40 : x
  2. Step 2: Convert to fraction form
    122,520.52/169,064.94 = 68,811.40/x
  3. Step 3: Cross multiply
    122,520.52x = 169,064.94 × 68,811.40
  4. Step 4: Simplify right side
    122,520.52x = 11,633,595,212.32
  5. Step 5: Solve for x
    x = 11,633,595,212.32/122,520.52
  6. Step 6: Final answer
    x = 94,952.22

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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.