Home / 190,190.76-262,463.25-105,307.83

Finding the Fourth Proportional to 190,190.76, 262,463.25 and 105,307.83

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Solution

The fourth proportional to 190,190.76, 262,463.25 and 105,307.83 is: 145,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,190.76 : 262,463.25 = 105,307.83 : x
  2. Step 2: Convert to fraction form
    190,190.76/262,463.25 = 105,307.83/x
  3. Step 3: Cross multiply
    190,190.76x = 262,463.25 × 105,307.83
  4. Step 4: Simplify right side
    190,190.76x = 27,639,435,312.25
  5. Step 5: Solve for x
    x = 27,639,435,312.25/190,190.76
  6. Step 6: Final answer
    x = 145,324.81

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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.