Home / 197,458.73-272,406.48-115,745.57

Finding the Fourth Proportional to 197,458.73, 272,406.48 and 115,745.57

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Solution

The fourth proportional to 197,458.73, 272,406.48 and 115,745.57 is: 159,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,458.73 : 272,406.48 = 115,745.57 : x
  2. Step 2: Convert to fraction form
    197,458.73/272,406.48 = 115,745.57/x
  3. Step 3: Cross multiply
    197,458.73x = 272,406.48 × 115,745.57
  4. Step 4: Simplify right side
    197,458.73x = 31,529,843,299.29
  5. Step 5: Solve for x
    x = 31,529,843,299.29/197,458.73
  6. Step 6: Final answer
    x = 159,678.14

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1.5x scale

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.