Home / 191,941.25-287,911.82-103,072.50

Finding the Fourth Proportional to 191,941.25, 287,911.82 and 103,072.50

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Solution

The fourth proportional to 191,941.25, 287,911.82 and 103,072.50 is: 154,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,941.25 : 287,911.82 = 103,072.50 : x
  2. Step 2: Convert to fraction form
    191,941.25/287,911.82 = 103,072.50/x
  3. Step 3: Cross multiply
    191,941.25x = 287,911.82 × 103,072.50
  4. Step 4: Simplify right side
    191,941.25x = 29,675,790,551.59
  5. Step 5: Solve for x
    x = 29,675,790,551.59/191,941.25
  6. Step 6: Final answer
    x = 154,608.72

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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.