Home / 122,365.58-183,540.97-72,761.35

Finding the Fourth Proportional to 122,365.58, 183,540.97 and 72,761.35

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Solution

The fourth proportional to 122,365.58, 183,540.97 and 72,761.35 is: 109,137.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,365.58 : 183,540.97 = 72,761.35 : x
  2. Step 2: Convert to fraction form
    122,365.58/183,540.97 = 72,761.35/x
  3. Step 3: Cross multiply
    122,365.58x = 183,540.97 × 72,761.35
  4. Step 4: Simplify right side
    122,365.58x = 13,354,688,116.75
  5. Step 5: Solve for x
    x = 13,354,688,116.75/122,365.58
  6. Step 6: Final answer
    x = 109,137.62

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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.