Home / 190,363.21-262,702.79-105,481.69

Finding the Fourth Proportional to 190,363.21, 262,702.79 and 105,481.69

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Solution

The fourth proportional to 190,363.21, 262,702.79 and 105,481.69 is: 145,565.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,363.21 : 262,702.79 = 105,481.69 : x
  2. Step 2: Convert to fraction form
    190,363.21/262,702.79 = 105,481.69/x
  3. Step 3: Cross multiply
    190,363.21x = 262,702.79 × 105,481.69
  4. Step 4: Simplify right side
    190,363.21x = 27,710,333,729.51
  5. Step 5: Solve for x
    x = 27,710,333,729.51/190,363.21
  6. Step 6: Final answer
    x = 145,565.59

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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.