Home / 189,966.94-262,131.59-109,420.67

Finding the Fourth Proportional to 189,966.94, 262,131.59 and 109,420.67

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Solution

The fourth proportional to 189,966.94, 262,131.59 and 109,420.67 is: 150,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,966.94 : 262,131.59 = 109,420.67 : x
  2. Step 2: Convert to fraction form
    189,966.94/262,131.59 = 109,420.67/x
  3. Step 3: Cross multiply
    189,966.94x = 262,131.59 × 109,420.67
  4. Step 4: Simplify right side
    189,966.94x = 28,682,615,134.85
  5. Step 5: Solve for x
    x = 28,682,615,134.85/189,966.94
  6. Step 6: Final answer
    x = 150,987.41

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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.