Home / 191,905.20-287,879.40-58,784.40

Finding the Fourth Proportional to 191,905.20, 287,879.40 and 58,784.40

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Solution

The fourth proportional to 191,905.20, 287,879.40 and 58,784.40 is: 88,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,905.20 : 287,879.40 = 58,784.40 : x
  2. Step 2: Convert to fraction form
    191,905.20/287,879.40 = 58,784.40/x
  3. Step 3: Cross multiply
    191,905.20x = 287,879.40 × 58,784.40
  4. Step 4: Simplify right side
    191,905.20x = 16,922,817,801.36
  5. Step 5: Solve for x
    x = 16,922,817,801.36/191,905.20
  6. Step 6: Final answer
    x = 88,183.22

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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.