Home / 68,167.18-102,254.46-20,778.67

Finding the Fourth Proportional to 68,167.18, 102,254.46 and 20,778.67

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Solution

The fourth proportional to 68,167.18, 102,254.46 and 20,778.67 is: 31,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,167.18 : 102,254.46 = 20,778.67 : x
  2. Step 2: Convert to fraction form
    68,167.18/102,254.46 = 20,778.67/x
  3. Step 3: Cross multiply
    68,167.18x = 102,254.46 × 20,778.67
  4. Step 4: Simplify right side
    68,167.18x = 2,124,711,680.37
  5. Step 5: Solve for x
    x = 2,124,711,680.37/68,167.18
  6. Step 6: Final answer
    x = 31,169.13

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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.