Home / 131,220.21-196,861.55-42,473.71

Finding the Fourth Proportional to 131,220.21, 196,861.55 and 42,473.71

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Solution

The fourth proportional to 131,220.21, 196,861.55 and 42,473.71 is: 63,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220.21 : 196,861.55 = 42,473.71 : x
  2. Step 2: Convert to fraction form
    131,220.21/196,861.55 = 42,473.71/x
  3. Step 3: Cross multiply
    131,220.21x = 196,861.55 × 42,473.71
  4. Step 4: Simplify right side
    131,220.21x = 8,361,439,430.67
  5. Step 5: Solve for x
    x = 8,361,439,430.67/131,220.21
  6. Step 6: Final answer
    x = 63,720.67

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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.