Home / 190,015.85-262,254.02-109,428.54

Finding the Fourth Proportional to 190,015.85, 262,254.02 and 109,428.54

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Solution

The fourth proportional to 190,015.85, 262,254.02 and 109,428.54 is: 151,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,015.85 : 262,254.02 = 109,428.54 : x
  2. Step 2: Convert to fraction form
    190,015.85/262,254.02 = 109,428.54/x
  3. Step 3: Cross multiply
    190,015.85x = 262,254.02 × 109,428.54
  4. Step 4: Simplify right side
    190,015.85x = 28,698,073,970.59
  5. Step 5: Solve for x
    x = 28,698,073,970.59/190,015.85
  6. Step 6: Final answer
    x = 151,029.90

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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.