Home / 197,203.58-272,140.95-107,779.58

Finding the Fourth Proportional to 197,203.58, 272,140.95 and 107,779.58

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Solution

The fourth proportional to 197,203.58, 272,140.95 and 107,779.58 is: 148,735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,203.58 : 272,140.95 = 107,779.58 : x
  2. Step 2: Convert to fraction form
    197,203.58/272,140.95 = 107,779.58/x
  3. Step 3: Cross multiply
    197,203.58x = 272,140.95 × 107,779.58
  4. Step 4: Simplify right side
    197,203.58x = 29,331,237,291.80
  5. Step 5: Solve for x
    x = 29,331,237,291.80/197,203.58
  6. Step 6: Final answer
    x = 148,735.83

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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.