Home / 128,429.50-192,562.23-61,736.93

Finding the Fourth Proportional to 128,429.50, 192,562.23 and 61,736.93

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Solution

The fourth proportional to 128,429.50, 192,562.23 and 61,736.93 is: 92,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,429.50 : 192,562.23 = 61,736.93 : x
  2. Step 2: Convert to fraction form
    128,429.50/192,562.23 = 61,736.93/x
  3. Step 3: Cross multiply
    128,429.50x = 192,562.23 × 61,736.93
  4. Step 4: Simplify right side
    128,429.50x = 11,888,200,914.15
  5. Step 5: Solve for x
    x = 11,888,200,914.15/128,429.50
  6. Step 6: Final answer
    x = 92,565.97

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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.