Home / 113,740.62-156,912.15-68,392.38

Finding the Fourth Proportional to 113,740.62, 156,912.15 and 68,392.38

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Solution

The fourth proportional to 113,740.62, 156,912.15 and 68,392.38 is: 94,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,740.62 : 156,912.15 = 68,392.38 : x
  2. Step 2: Convert to fraction form
    113,740.62/156,912.15 = 68,392.38/x
  3. Step 3: Cross multiply
    113,740.62x = 156,912.15 × 68,392.38
  4. Step 4: Simplify right side
    113,740.62x = 10,731,595,389.42
  5. Step 5: Solve for x
    x = 10,731,595,389.42/113,740.62
  6. Step 6: Final answer
    x = 94,351.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.