Home / 190,522.36-262,916.94-105,638.68

Finding the Fourth Proportional to 190,522.36, 262,916.94 and 105,638.68

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Solution

The fourth proportional to 190,522.36, 262,916.94 and 105,638.68 is: 145,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,522.36 : 262,916.94 = 105,638.68 : x
  2. Step 2: Convert to fraction form
    190,522.36/262,916.94 = 105,638.68/x
  3. Step 3: Cross multiply
    190,522.36x = 262,916.94 × 105,638.68
  4. Step 4: Simplify right side
    190,522.36x = 27,774,198,491.24
  5. Step 5: Solve for x
    x = 27,774,198,491.24/190,522.36
  6. Step 6: Final answer
    x = 145,779.21

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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.