Home / 190,107.05-262,320.27-105,223.91

Finding the Fourth Proportional to 190,107.05, 262,320.27 and 105,223.91

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Solution

The fourth proportional to 190,107.05, 262,320.27 and 105,223.91 is: 145,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,107.05 : 262,320.27 = 105,223.91 : x
  2. Step 2: Convert to fraction form
    190,107.05/262,320.27 = 105,223.91/x
  3. Step 3: Cross multiply
    190,107.05x = 262,320.27 × 105,223.91
  4. Step 4: Simplify right side
    190,107.05x = 27,602,364,481.66
  5. Step 5: Solve for x
    x = 27,602,364,481.66/190,107.05
  6. Step 6: Final answer
    x = 145,193.80

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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.