Home / 191,108.43-263,732.76-105,071.04

Finding the Fourth Proportional to 191,108.43, 263,732.76 and 105,071.04

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Solution

The fourth proportional to 191,108.43, 263,732.76 and 105,071.04 is: 144,999.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,108.43 : 263,732.76 = 105,071.04 : x
  2. Step 2: Convert to fraction form
    191,108.43/263,732.76 = 105,071.04/x
  3. Step 3: Cross multiply
    191,108.43x = 263,732.76 × 105,071.04
  4. Step 4: Simplify right side
    191,108.43x = 27,710,675,375.27
  5. Step 5: Solve for x
    x = 27,710,675,375.27/191,108.43
  6. Step 6: Final answer
    x = 144,999.75

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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.