Home / 190,206.74-262,482.09-105,321.98

Finding the Fourth Proportional to 190,206.74, 262,482.09 and 105,321.98

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Solution

The fourth proportional to 190,206.74, 262,482.09 and 105,321.98 is: 145,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,206.74 : 262,482.09 = 105,321.98 : x
  2. Step 2: Convert to fraction form
    190,206.74/262,482.09 = 105,321.98/x
  3. Step 3: Cross multiply
    190,206.74x = 262,482.09 × 105,321.98
  4. Step 4: Simplify right side
    190,206.74x = 27,645,133,433.34
  5. Step 5: Solve for x
    x = 27,645,133,433.34/190,206.74
  6. Step 6: Final answer
    x = 145,342.55

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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.