Home / 191,118.76-263,748.95-105,081.33

Finding the Fourth Proportional to 191,118.76, 263,748.95 and 105,081.33

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Solution

The fourth proportional to 191,118.76, 263,748.95 and 105,081.33 is: 145,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,118.76 : 263,748.95 = 105,081.33 : x
  2. Step 2: Convert to fraction form
    191,118.76/263,748.95 = 105,081.33/x
  3. Step 3: Cross multiply
    191,118.76x = 263,748.95 × 105,081.33
  4. Step 4: Simplify right side
    191,118.76x = 27,715,091,309.81
  5. Step 5: Solve for x
    x = 27,715,091,309.81/191,118.76
  6. Step 6: Final answer
    x = 145,015.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.