Home / 191,947.08-287,920.58-103,078.34

Finding the Fourth Proportional to 191,947.08, 287,920.58 and 103,078.34

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Solution

The fourth proportional to 191,947.08, 287,920.58 and 103,078.34 is: 154,617.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,947.08 : 287,920.58 = 103,078.34 : x
  2. Step 2: Convert to fraction form
    191,947.08/287,920.58 = 103,078.34/x
  3. Step 3: Cross multiply
    191,947.08x = 287,920.58 × 103,078.34
  4. Step 4: Simplify right side
    191,947.08x = 29,678,374,562.94
  5. Step 5: Solve for x
    x = 29,678,374,562.94/191,947.08
  6. Step 6: Final answer
    x = 154,617.48

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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.