Home / 190,278-262,583.66-105,400.52

Finding the Fourth Proportional to 190,278, 262,583.66 and 105,400.52

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Solution

The fourth proportional to 190,278, 262,583.66 and 105,400.52 is: 145,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,278 : 262,583.66 = 105,400.52 : x
  2. Step 2: Convert to fraction form
    190,278/262,583.66 = 105,400.52/x
  3. Step 3: Cross multiply
    190,278x = 262,583.66 × 105,400.52
  4. Step 4: Simplify right side
    190,278x = 27,676,454,307.50
  5. Step 5: Solve for x
    x = 27,676,454,307.50/190,278
  6. Step 6: Final answer
    x = 145,452.73

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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.