Home / 191,919.78-287,815.33-63,806.51

Finding the Fourth Proportional to 191,919.78, 287,815.33 and 63,806.51

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Solution

The fourth proportional to 191,919.78, 287,815.33 and 63,806.51 is: 95,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,919.78 : 287,815.33 = 63,806.51 : x
  2. Step 2: Convert to fraction form
    191,919.78/287,815.33 = 63,806.51/x
  3. Step 3: Cross multiply
    191,919.78x = 287,815.33 × 63,806.51
  4. Step 4: Simplify right side
    191,919.78x = 18,364,490,292.72
  5. Step 5: Solve for x
    x = 18,364,490,292.72/191,919.78
  6. Step 6: Final answer
    x = 95,688.37

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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.