Home / 122,790.80-183,725.40-111,731.60

Finding the Fourth Proportional to 122,790.80, 183,725.40 and 111,731.60

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Solution

The fourth proportional to 122,790.80, 183,725.40 and 111,731.60 is: 167,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,790.80 : 183,725.40 = 111,731.60 : x
  2. Step 2: Convert to fraction form
    122,790.80/183,725.40 = 111,731.60/x
  3. Step 3: Cross multiply
    122,790.80x = 183,725.40 × 111,731.60
  4. Step 4: Simplify right side
    122,790.80x = 20,527,932,902.64
  5. Step 5: Solve for x
    x = 20,527,932,902.64/122,790.80
  6. Step 6: Final answer
    x = 167,178.10

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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.