Home / 190,329.09-262,643.81-105,441.09

Finding the Fourth Proportional to 190,329.09, 262,643.81 and 105,441.09

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Solution

The fourth proportional to 190,329.09, 262,643.81 and 105,441.09 is: 145,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,329.09 : 262,643.81 = 105,441.09 : x
  2. Step 2: Convert to fraction form
    190,329.09/262,643.81 = 105,441.09/x
  3. Step 3: Cross multiply
    190,329.09x = 262,643.81 × 105,441.09
  4. Step 4: Simplify right side
    190,329.09x = 27,693,449,080.95
  5. Step 5: Solve for x
    x = 27,693,449,080.95/190,329.09
  6. Step 6: Final answer
    x = 145,502.98

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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.