Home / 203,041.23-280,074.31-130,419.67

Finding the Fourth Proportional to 203,041.23, 280,074.31 and 130,419.67

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Solution

The fourth proportional to 203,041.23, 280,074.31 and 130,419.67 is: 179,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,041.23 : 280,074.31 = 130,419.67 : x
  2. Step 2: Convert to fraction form
    203,041.23/280,074.31 = 130,419.67/x
  3. Step 3: Cross multiply
    203,041.23x = 280,074.31 × 130,419.67
  4. Step 4: Simplify right side
    203,041.23x = 36,527,198,584.58
  5. Step 5: Solve for x
    x = 36,527,198,584.58/203,041.23
  6. Step 6: Final answer
    x = 179,900.40

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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.