Home / 122,135.94-183,185.55-71,558.19

Finding the Fourth Proportional to 122,135.94, 183,185.55 and 71,558.19

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Solution

The fourth proportional to 122,135.94, 183,185.55 and 71,558.19 is: 107,326.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,135.94 : 183,185.55 = 71,558.19 : x
  2. Step 2: Convert to fraction form
    122,135.94/183,185.55 = 71,558.19/x
  3. Step 3: Cross multiply
    122,135.94x = 183,185.55 × 71,558.19
  4. Step 4: Simplify right side
    122,135.94x = 13,108,426,392.15
  5. Step 5: Solve for x
    x = 13,108,426,392.15/122,135.94
  6. Step 6: Final answer
    x = 107,326.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.