Home / 121,440.20-182,063.10-51,261.80

Finding the Fourth Proportional to 121,440.20, 182,063.10 and 51,261.80

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Solution

The fourth proportional to 121,440.20, 182,063.10 and 51,261.80 is: 76,851.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,440.20 : 182,063.10 = 51,261.80 : x
  2. Step 2: Convert to fraction form
    121,440.20/182,063.10 = 51,261.80/x
  3. Step 3: Cross multiply
    121,440.20x = 182,063.10 × 51,261.80
  4. Step 4: Simplify right side
    121,440.20x = 9,332,882,219.58
  5. Step 5: Solve for x
    x = 9,332,882,219.58/121,440.20
  6. Step 6: Final answer
    x = 76,851.67

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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.