Home / 191,918.70-264,835.87-105,878.79

Finding the Fourth Proportional to 191,918.70, 264,835.87 and 105,878.79

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Solution

The fourth proportional to 191,918.70, 264,835.87 and 105,878.79 is: 146,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,918.70 : 264,835.87 = 105,878.79 : x
  2. Step 2: Convert to fraction form
    191,918.70/264,835.87 = 105,878.79/x
  3. Step 3: Cross multiply
    191,918.70x = 264,835.87 × 105,878.79
  4. Step 4: Simplify right side
    191,918.70x = 28,040,501,199.50
  5. Step 5: Solve for x
    x = 28,040,501,199.50/191,918.70
  6. Step 6: Final answer
    x = 146,106.14

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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.