Home / 191,112.57-263,735.52-105,073.02

Finding the Fourth Proportional to 191,112.57, 263,735.52 and 105,073.02

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Solution

The fourth proportional to 191,112.57, 263,735.52 and 105,073.02 is: 145,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,112.57 : 263,735.52 = 105,073.02 : x
  2. Step 2: Convert to fraction form
    191,112.57/263,735.52 = 105,073.02/x
  3. Step 3: Cross multiply
    191,112.57x = 263,735.52 × 105,073.02
  4. Step 4: Simplify right side
    191,112.57x = 27,711,487,567.67
  5. Step 5: Solve for x
    x = 27,711,487,567.67/191,112.57
  6. Step 6: Final answer
    x = 145,000.86

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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.