Home / 112,135.63-168,203.41-76,968.67

Finding the Fourth Proportional to 112,135.63, 168,203.41 and 76,968.67

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Solution

The fourth proportional to 112,135.63, 168,203.41 and 76,968.67 is: 115,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,135.63 : 168,203.41 = 76,968.67 : x
  2. Step 2: Convert to fraction form
    112,135.63/168,203.41 = 76,968.67/x
  3. Step 3: Cross multiply
    112,135.63x = 168,203.41 × 76,968.67
  4. Step 4: Simplify right side
    112,135.63x = 12,946,392,757.16
  5. Step 5: Solve for x
    x = 12,946,392,757.16/112,135.63
  6. Step 6: Final answer
    x = 115,452.98

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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.