Home / 197,511.78-272,565.09-112,627.02

Finding the Fourth Proportional to 197,511.78, 272,565.09 and 112,627.02

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Solution

The fourth proportional to 197,511.78, 272,565.09 and 112,627.02 is: 155,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,511.78 : 272,565.09 = 112,627.02 : x
  2. Step 2: Convert to fraction form
    197,511.78/272,565.09 = 112,627.02/x
  3. Step 3: Cross multiply
    197,511.78x = 272,565.09 × 112,627.02
  4. Step 4: Simplify right side
    197,511.78x = 30,698,193,842.73
  5. Step 5: Solve for x
    x = 30,698,193,842.73/197,511.78
  6. Step 6: Final answer
    x = 155,424.62

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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.