Home / 141,520.32-212,203.62-70,286.67

Finding the Fourth Proportional to 141,520.32, 212,203.62 and 70,286.67

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Solution

The fourth proportional to 141,520.32, 212,203.62 and 70,286.67 is: 105,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,520.32 : 212,203.62 = 70,286.67 : x
  2. Step 2: Convert to fraction form
    141,520.32/212,203.62 = 70,286.67/x
  3. Step 3: Cross multiply
    141,520.32x = 212,203.62 × 70,286.67
  4. Step 4: Simplify right side
    141,520.32x = 14,915,085,811.75
  5. Step 5: Solve for x
    x = 14,915,085,811.75/141,520.32
  6. Step 6: Final answer
    x = 105,391.83

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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.