Home / 191,865.78-264,771-105,832.62

Finding the Fourth Proportional to 191,865.78, 264,771 and 105,832.62

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Solution

The fourth proportional to 191,865.78, 264,771 and 105,832.62 is: 146,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,865.78 : 264,771 = 105,832.62 : x
  2. Step 2: Convert to fraction form
    191,865.78/264,771 = 105,832.62/x
  3. Step 3: Cross multiply
    191,865.78x = 264,771 × 105,832.62
  4. Step 4: Simplify right side
    191,865.78x = 28,021,408,630.02
  5. Step 5: Solve for x
    x = 28,021,408,630.02/191,865.78
  6. Step 6: Final answer
    x = 146,046.93

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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.