Home / 126,882.40-190,093.20-103,381.60

Finding the Fourth Proportional to 126,882.40, 190,093.20 and 103,381.60

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Solution

The fourth proportional to 126,882.40, 190,093.20 and 103,381.60 is: 154,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,882.40 : 190,093.20 = 103,381.60 : x
  2. Step 2: Convert to fraction form
    126,882.40/190,093.20 = 103,381.60/x
  3. Step 3: Cross multiply
    126,882.40x = 190,093.20 × 103,381.60
  4. Step 4: Simplify right side
    126,882.40x = 19,652,139,165.12
  5. Step 5: Solve for x
    x = 19,652,139,165.12/126,882.40
  6. Step 6: Final answer
    x = 154,884.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.