Home / 190,697-263,161.86-105,827.72

Finding the Fourth Proportional to 190,697, 263,161.86 and 105,827.72

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Solution

The fourth proportional to 190,697, 263,161.86 and 105,827.72 is: 146,042.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,697 : 263,161.86 = 105,827.72 : x
  2. Step 2: Convert to fraction form
    190,697/263,161.86 = 105,827.72/x
  3. Step 3: Cross multiply
    190,697x = 263,161.86 × 105,827.72
  4. Step 4: Simplify right side
    190,697x = 27,849,819,634.76
  5. Step 5: Solve for x
    x = 27,849,819,634.76/190,697
  6. Step 6: Final answer
    x = 146,042.25

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1.5x scale

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.