Home / 190,391.36-262,750.59-105,506.60

Finding the Fourth Proportional to 190,391.36, 262,750.59 and 105,506.60

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Solution

The fourth proportional to 190,391.36, 262,750.59 and 105,506.60 is: 145,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,391.36 : 262,750.59 = 105,506.60 : x
  2. Step 2: Convert to fraction form
    190,391.36/262,750.59 = 105,506.60/x
  3. Step 3: Cross multiply
    190,391.36x = 262,750.59 × 105,506.60
  4. Step 4: Simplify right side
    190,391.36x = 27,721,920,085.14
  5. Step 5: Solve for x
    x = 27,721,920,085.14/190,391.36
  6. Step 6: Final answer
    x = 145,604.93

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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.