Home / 113,381.20-170,266.20-74,112.40

Finding the Fourth Proportional to 113,381.20, 170,266.20 and 74,112.40

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Solution

The fourth proportional to 113,381.20, 170,266.20 and 74,112.40 is: 111,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,381.20 : 170,266.20 = 74,112.40 : x
  2. Step 2: Convert to fraction form
    113,381.20/170,266.20 = 74,112.40/x
  3. Step 3: Cross multiply
    113,381.20x = 170,266.20 × 74,112.40
  4. Step 4: Simplify right side
    113,381.20x = 12,618,836,720.88
  5. Step 5: Solve for x
    x = 12,618,836,720.88/113,381.20
  6. Step 6: Final answer
    x = 111,295.67

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1.5x scale

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.