Home / 191,236.20-286,757.10-112,374.60

Finding the Fourth Proportional to 191,236.20, 286,757.10 and 112,374.60

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Solution

The fourth proportional to 191,236.20, 286,757.10 and 112,374.60 is: 168,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,236.20 : 286,757.10 = 112,374.60 : x
  2. Step 2: Convert to fraction form
    191,236.20/286,757.10 = 112,374.60/x
  3. Step 3: Cross multiply
    191,236.20x = 286,757.10 × 112,374.60
  4. Step 4: Simplify right side
    191,236.20x = 32,224,214,409.66
  5. Step 5: Solve for x
    x = 32,224,214,409.66/191,236.20
  6. Step 6: Final answer
    x = 168,504.78

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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.