Home / 122,552.55-169,078.19-80,135.55

Finding the Fourth Proportional to 122,552.55, 169,078.19 and 80,135.55

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Solution

The fourth proportional to 122,552.55, 169,078.19 and 80,135.55 is: 110,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,552.55 : 169,078.19 = 80,135.55 : x
  2. Step 2: Convert to fraction form
    122,552.55/169,078.19 = 80,135.55/x
  3. Step 3: Cross multiply
    122,552.55x = 169,078.19 × 80,135.55
  4. Step 4: Simplify right side
    122,552.55x = 13,549,173,347.98
  5. Step 5: Solve for x
    x = 13,549,173,347.98/122,552.55
  6. Step 6: Final answer
    x = 110,558.07

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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.