Home / 190,408.75-262,764.08-105,531.28

Finding the Fourth Proportional to 190,408.75, 262,764.08 and 105,531.28

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Solution

The fourth proportional to 190,408.75, 262,764.08 and 105,531.28 is: 145,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,408.75 : 262,764.08 = 105,531.28 : x
  2. Step 2: Convert to fraction form
    190,408.75/262,764.08 = 105,531.28/x
  3. Step 3: Cross multiply
    190,408.75x = 262,764.08 × 105,531.28
  4. Step 4: Simplify right side
    190,408.75x = 27,729,829,172.77
  5. Step 5: Solve for x
    x = 27,729,829,172.77/190,408.75
  6. Step 6: Final answer
    x = 145,633.17

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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.