Home / 191,906.73-287,717.91-91,971.75

Finding the Fourth Proportional to 191,906.73, 287,717.91 and 91,971.75

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Solution

The fourth proportional to 191,906.73, 287,717.91 and 91,971.75 is: 137,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,906.73 : 287,717.91 = 91,971.75 : x
  2. Step 2: Convert to fraction form
    191,906.73/287,717.91 = 91,971.75/x
  3. Step 3: Cross multiply
    191,906.73x = 287,717.91 × 91,971.75
  4. Step 4: Simplify right side
    191,906.73x = 26,461,919,689.04
  5. Step 5: Solve for x
    x = 26,461,919,689.04/191,906.73
  6. Step 6: Final answer
    x = 137,889.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.