Home / 128,626.57-193,005.67-61,234.77

Finding the Fourth Proportional to 128,626.57, 193,005.67 and 61,234.77

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Solution

The fourth proportional to 128,626.57, 193,005.67 and 61,234.77 is: 91,883.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,626.57 : 193,005.67 = 61,234.77 : x
  2. Step 2: Convert to fraction form
    128,626.57/193,005.67 = 61,234.77/x
  3. Step 3: Cross multiply
    128,626.57x = 193,005.67 × 61,234.77
  4. Step 4: Simplify right side
    128,626.57x = 11,818,658,496.65
  5. Step 5: Solve for x
    x = 11,818,658,496.65/128,626.57
  6. Step 6: Final answer
    x = 91,883.49

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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.