Home / 190,671.52-263,126.73-105,788.38

Finding the Fourth Proportional to 190,671.52, 263,126.73 and 105,788.38

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Solution

The fourth proportional to 190,671.52, 263,126.73 and 105,788.38 is: 145,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,671.52 : 263,126.73 = 105,788.38 : x
  2. Step 2: Convert to fraction form
    190,671.52/263,126.73 = 105,788.38/x
  3. Step 3: Cross multiply
    190,671.52x = 263,126.73 × 105,788.38
  4. Step 4: Simplify right side
    190,671.52x = 27,835,750,501.40
  5. Step 5: Solve for x
    x = 27,835,750,501.40/190,671.52
  6. Step 6: Final answer
    x = 145,987.98

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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.