Home / 70,201.10-105,286.16-20,270.34

Finding the Fourth Proportional to 70,201.10, 105,286.16 and 20,270.34

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Solution

The fourth proportional to 70,201.10, 105,286.16 and 20,270.34 is: 30,401.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,201.10 : 105,286.16 = 20,270.34 : x
  2. Step 2: Convert to fraction form
    70,201.10/105,286.16 = 20,270.34/x
  3. Step 3: Cross multiply
    70,201.10x = 105,286.16 × 20,270.34
  4. Step 4: Simplify right side
    70,201.10x = 2,134,186,260.49
  5. Step 5: Solve for x
    x = 2,134,186,260.49/70,201.10
  6. Step 6: Final answer
    x = 30,401.04

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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.