Home / 190,671.40-263,126.57-105,788.26

Finding the Fourth Proportional to 190,671.40, 263,126.57 and 105,788.26

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Solution

The fourth proportional to 190,671.40, 263,126.57 and 105,788.26 is: 145,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,671.40 : 263,126.57 = 105,788.26 : x
  2. Step 2: Convert to fraction form
    190,671.40/263,126.57 = 105,788.26/x
  3. Step 3: Cross multiply
    190,671.40x = 263,126.57 × 105,788.26
  4. Step 4: Simplify right side
    190,671.40x = 27,835,700,155.49
  5. Step 5: Solve for x
    x = 27,835,700,155.49/190,671.40
  6. Step 6: Final answer
    x = 145,987.81

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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.