Home / 197,203.50-272,140.83-107,779.50

Finding the Fourth Proportional to 197,203.50, 272,140.83 and 107,779.50

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Solution

The fourth proportional to 197,203.50, 272,140.83 and 107,779.50 is: 148,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,203.50 : 272,140.83 = 107,779.50 : x
  2. Step 2: Convert to fraction form
    197,203.50/272,140.83 = 107,779.50/x
  3. Step 3: Cross multiply
    197,203.50x = 272,140.83 × 107,779.50
  4. Step 4: Simplify right side
    197,203.50x = 29,331,202,586.99
  5. Step 5: Solve for x
    x = 29,331,202,586.99/197,203.50
  6. Step 6: Final answer
    x = 148,735.71

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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.