Home / 189,208.22-261,113.56-108,650.07

Finding the Fourth Proportional to 189,208.22, 261,113.56 and 108,650.07

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Solution

The fourth proportional to 189,208.22, 261,113.56 and 108,650.07 is: 149,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,208.22 : 261,113.56 = 108,650.07 : x
  2. Step 2: Convert to fraction form
    189,208.22/261,113.56 = 108,650.07/x
  3. Step 3: Cross multiply
    189,208.22x = 261,113.56 × 108,650.07
  4. Step 4: Simplify right side
    189,208.22x = 28,370,006,300.32
  5. Step 5: Solve for x
    x = 28,370,006,300.32/189,208.22
  6. Step 6: Final answer
    x = 149,940.67

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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.