Home / 190,788.90-263,275.44-105,899.28

Finding the Fourth Proportional to 190,788.90, 263,275.44 and 105,899.28

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Solution

The fourth proportional to 190,788.90, 263,275.44 and 105,899.28 is: 146,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,788.90 : 263,275.44 = 105,899.28 : x
  2. Step 2: Convert to fraction form
    190,788.90/263,275.44 = 105,899.28/x
  3. Step 3: Cross multiply
    190,788.90x = 263,275.44 × 105,899.28
  4. Step 4: Simplify right side
    190,788.90x = 27,880,679,537.68
  5. Step 5: Solve for x
    x = 27,880,679,537.68/190,788.90
  6. Step 6: Final answer
    x = 146,133.66

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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.