Home / 191,139.08-263,748.96-105,083.87

Finding the Fourth Proportional to 191,139.08, 263,748.96 and 105,083.87

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Solution

The fourth proportional to 191,139.08, 263,748.96 and 105,083.87 is: 145,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,139.08 : 263,748.96 = 105,083.87 : x
  2. Step 2: Convert to fraction form
    191,139.08/263,748.96 = 105,083.87/x
  3. Step 3: Cross multiply
    191,139.08x = 263,748.96 × 105,083.87
  4. Step 4: Simplify right side
    191,139.08x = 27,715,760,106.53
  5. Step 5: Solve for x
    x = 27,715,760,106.53/191,139.08
  6. Step 6: Final answer
    x = 145,003.11

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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.