Home / 122,672.16-183,729.60-108,485.28

Finding the Fourth Proportional to 122,672.16, 183,729.60 and 108,485.28

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Solution

The fourth proportional to 122,672.16, 183,729.60 and 108,485.28 is: 162,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,672.16 : 183,729.60 = 108,485.28 : x
  2. Step 2: Convert to fraction form
    122,672.16/183,729.60 = 108,485.28/x
  3. Step 3: Cross multiply
    122,672.16x = 183,729.60 × 108,485.28
  4. Step 4: Simplify right side
    122,672.16x = 19,931,957,100.29
  5. Step 5: Solve for x
    x = 19,931,957,100.29/122,672.16
  6. Step 6: Final answer
    x = 162,481.50

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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.