Home / 112,204.20-168,178.32-70,103.64

Finding the Fourth Proportional to 112,204.20, 168,178.32 and 70,103.64

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Solution

The fourth proportional to 112,204.20, 168,178.32 and 70,103.64 is: 105,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,204.20 : 168,178.32 = 70,103.64 : x
  2. Step 2: Convert to fraction form
    112,204.20/168,178.32 = 70,103.64/x
  3. Step 3: Cross multiply
    112,204.20x = 168,178.32 × 70,103.64
  4. Step 4: Simplify right side
    112,204.20x = 11,789,912,401.08
  5. Step 5: Solve for x
    x = 11,789,912,401.08/112,204.20
  6. Step 6: Final answer
    x = 105,075.50

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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.