Home / 80,203.20-110,426.88-70,636.48

Finding the Fourth Proportional to 80,203.20, 110,426.88 and 70,636.48

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Solution

The fourth proportional to 80,203.20, 110,426.88 and 70,636.48 is: 97,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,203.20 : 110,426.88 = 70,636.48 : x
  2. Step 2: Convert to fraction form
    80,203.20/110,426.88 = 70,636.48/x
  3. Step 3: Cross multiply
    80,203.20x = 110,426.88 × 70,636.48
  4. Step 4: Simplify right side
    80,203.20x = 7,800,166,100.58
  5. Step 5: Solve for x
    x = 7,800,166,100.58/80,203.20
  6. Step 6: Final answer
    x = 97,255.05

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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.