Home / 190,623.57-263,069.13-105,740.70

Finding the Fourth Proportional to 190,623.57, 263,069.13 and 105,740.70

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Solution

The fourth proportional to 190,623.57, 263,069.13 and 105,740.70 is: 145,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,623.57 : 263,069.13 = 105,740.70 : x
  2. Step 2: Convert to fraction form
    190,623.57/263,069.13 = 105,740.70/x
  3. Step 3: Cross multiply
    190,623.57x = 263,069.13 × 105,740.70
  4. Step 4: Simplify right side
    190,623.57x = 27,817,113,954.59
  5. Step 5: Solve for x
    x = 27,817,113,954.59/190,623.57
  6. Step 6: Final answer
    x = 145,926.94

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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.