Home / 190,326.78-262,639.58-105,437.70

Finding the Fourth Proportional to 190,326.78, 262,639.58 and 105,437.70

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Solution

The fourth proportional to 190,326.78, 262,639.58 and 105,437.70 is: 145,497.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,326.78 : 262,639.58 = 105,437.70 : x
  2. Step 2: Convert to fraction form
    190,326.78/262,639.58 = 105,437.70/x
  3. Step 3: Cross multiply
    190,326.78x = 262,639.58 × 105,437.70
  4. Step 4: Simplify right side
    190,326.78x = 27,692,112,716.98
  5. Step 5: Solve for x
    x = 27,692,112,716.98/190,326.78
  6. Step 6: Final answer
    x = 145,497.72

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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.