Home / 128,170.22-192,282.58-43,907.76

Finding the Fourth Proportional to 128,170.22, 192,282.58 and 43,907.76

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Solution

The fourth proportional to 128,170.22, 192,282.58 and 43,907.76 is: 65,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,170.22 : 192,282.58 = 43,907.76 : x
  2. Step 2: Convert to fraction form
    128,170.22/192,282.58 = 43,907.76/x
  3. Step 3: Cross multiply
    128,170.22x = 192,282.58 × 43,907.76
  4. Step 4: Simplify right side
    128,170.22x = 8,442,697,429.71
  5. Step 5: Solve for x
    x = 8,442,697,429.71/128,170.22
  6. Step 6: Final answer
    x = 65,870.98

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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.