Home / 190,113.36-262,362-105,238.32

Finding the Fourth Proportional to 190,113.36, 262,362 and 105,238.32

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Solution

The fourth proportional to 190,113.36, 262,362 and 105,238.32 is: 145,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,113.36 : 262,362 = 105,238.32 : x
  2. Step 2: Convert to fraction form
    190,113.36/262,362 = 105,238.32/x
  3. Step 3: Cross multiply
    190,113.36x = 262,362 × 105,238.32
  4. Step 4: Simplify right side
    190,113.36x = 27,610,536,111.84
  5. Step 5: Solve for x
    x = 27,610,536,111.84/190,113.36
  6. Step 6: Final answer
    x = 145,231.96

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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.