Home / 191,156.45-263,802.54-105,118.96

Finding the Fourth Proportional to 191,156.45, 263,802.54 and 105,118.96

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Solution

The fourth proportional to 191,156.45, 263,802.54 and 105,118.96 is: 145,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,156.45 : 263,802.54 = 105,118.96 : x
  2. Step 2: Convert to fraction form
    191,156.45/263,802.54 = 105,118.96/x
  3. Step 3: Cross multiply
    191,156.45x = 263,802.54 × 105,118.96
  4. Step 4: Simplify right side
    191,156.45x = 27,730,649,671.64
  5. Step 5: Solve for x
    x = 27,730,649,671.64/191,156.45
  6. Step 6: Final answer
    x = 145,067.82

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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.