Home / 190,521.06-262,930.68-105,638.10

Finding the Fourth Proportional to 190,521.06, 262,930.68 and 105,638.10

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Solution

The fourth proportional to 190,521.06, 262,930.68 and 105,638.10 is: 145,787.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,521.06 : 262,930.68 = 105,638.10 : x
  2. Step 2: Convert to fraction form
    190,521.06/262,930.68 = 105,638.10/x
  3. Step 3: Cross multiply
    190,521.06x = 262,930.68 × 105,638.10
  4. Step 4: Simplify right side
    190,521.06x = 27,775,497,466.91
  5. Step 5: Solve for x
    x = 27,775,497,466.91/190,521.06
  6. Step 6: Final answer
    x = 145,787.02

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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.