Home / 190,035.72-262,245.60-105,153.39

Finding the Fourth Proportional to 190,035.72, 262,245.60 and 105,153.39

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Solution

The fourth proportional to 190,035.72, 262,245.60 and 105,153.39 is: 145,109.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,035.72 : 262,245.60 = 105,153.39 : x
  2. Step 2: Convert to fraction form
    190,035.72/262,245.60 = 105,153.39/x
  3. Step 3: Cross multiply
    190,035.72x = 262,245.60 × 105,153.39
  4. Step 4: Simplify right side
    190,035.72x = 27,576,013,852.58
  5. Step 5: Solve for x
    x = 27,576,013,852.58/190,035.72
  6. Step 6: Final answer
    x = 145,109.63

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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.