Home / 128,496.42-192,633.75-61,844.76

Finding the Fourth Proportional to 128,496.42, 192,633.75 and 61,844.76

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Solution

The fourth proportional to 128,496.42, 192,633.75 and 61,844.76 is: 92,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,496.42 : 192,633.75 = 61,844.76 : x
  2. Step 2: Convert to fraction form
    128,496.42/192,633.75 = 61,844.76/x
  3. Step 3: Cross multiply
    128,496.42x = 192,633.75 × 61,844.76
  4. Step 4: Simplify right side
    128,496.42x = 11,913,388,036.65
  5. Step 5: Solve for x
    x = 11,913,388,036.65/128,496.42
  6. Step 6: Final answer
    x = 92,713.77

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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.