Home / 128,152.11-192,297.12-53,323.91

Finding the Fourth Proportional to 128,152.11, 192,297.12 and 53,323.91

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Solution

The fourth proportional to 128,152.11, 192,297.12 and 53,323.91 is: 80,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,152.11 : 192,297.12 = 53,323.91 : x
  2. Step 2: Convert to fraction form
    128,152.11/192,297.12 = 53,323.91/x
  3. Step 3: Cross multiply
    128,152.11x = 192,297.12 × 53,323.91
  4. Step 4: Simplify right side
    128,152.11x = 10,254,034,320.14
  5. Step 5: Solve for x
    x = 10,254,034,320.14/128,152.11
  6. Step 6: Final answer
    x = 80,014.56

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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.