Home / 191,927.20-264,982.80-120,405.28

Finding the Fourth Proportional to 191,927.20, 264,982.80 and 120,405.28

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Solution

The fourth proportional to 191,927.20, 264,982.80 and 120,405.28 is: 166,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,927.20 : 264,982.80 = 120,405.28 : x
  2. Step 2: Convert to fraction form
    191,927.20/264,982.80 = 120,405.28/x
  3. Step 3: Cross multiply
    191,927.20x = 264,982.80 × 120,405.28
  4. Step 4: Simplify right side
    191,927.20x = 31,905,328,229.18
  5. Step 5: Solve for x
    x = 31,905,328,229.18/191,927.20
  6. Step 6: Final answer
    x = 166,236.62

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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.