Home / 225,932.45-311,775.55-129,133.40

Finding the Fourth Proportional to 225,932.45, 311,775.55 and 129,133.40

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Solution

The fourth proportional to 225,932.45, 311,775.55 and 129,133.40 is: 178,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,932.45 : 311,775.55 = 129,133.40 : x
  2. Step 2: Convert to fraction form
    225,932.45/311,775.55 = 129,133.40/x
  3. Step 3: Cross multiply
    225,932.45x = 311,775.55 × 129,133.40
  4. Step 4: Simplify right side
    225,932.45x = 40,260,634,926.66
  5. Step 5: Solve for x
    x = 40,260,634,926.66/225,932.45
  6. Step 6: Final answer
    x = 178,197.67

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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.