Home / 190,422.36-262,778.88-105,538.68

Finding the Fourth Proportional to 190,422.36, 262,778.88 and 105,538.68

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Solution

The fourth proportional to 190,422.36, 262,778.88 and 105,538.68 is: 145,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.36 : 262,778.88 = 105,538.68 : x
  2. Step 2: Convert to fraction form
    190,422.36/262,778.88 = 105,538.68/x
  3. Step 3: Cross multiply
    190,422.36x = 262,778.88 × 105,538.68
  4. Step 4: Simplify right side
    190,422.36x = 27,733,336,127.08
  5. Step 5: Solve for x
    x = 27,733,336,127.08/190,422.36
  6. Step 6: Final answer
    x = 145,641.17

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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.