Home / 191,905.08-287,734.43-79,662.77

Finding the Fourth Proportional to 191,905.08, 287,734.43 and 79,662.77

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Solution

The fourth proportional to 191,905.08, 287,734.43 and 79,662.77 is: 119,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,905.08 : 287,734.43 = 79,662.77 : x
  2. Step 2: Convert to fraction form
    191,905.08/287,734.43 = 79,662.77/x
  3. Step 3: Cross multiply
    191,905.08x = 287,734.43 × 79,662.77
  4. Step 4: Simplify right side
    191,905.08x = 22,921,721,557.66
  5. Step 5: Solve for x
    x = 22,921,721,557.66/191,905.08
  6. Step 6: Final answer
    x = 119,443.02

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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.