Home / 128,627.42-193,006.94-61,235.62

Finding the Fourth Proportional to 128,627.42, 193,006.94 and 61,235.62

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Solution

The fourth proportional to 128,627.42, 193,006.94 and 61,235.62 is: 91,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,627.42 : 193,006.94 = 61,235.62 : x
  2. Step 2: Convert to fraction form
    128,627.42/193,006.94 = 61,235.62/x
  3. Step 3: Cross multiply
    128,627.42x = 193,006.94 × 61,235.62
  4. Step 4: Simplify right side
    128,627.42x = 11,818,898,846.51
  5. Step 5: Solve for x
    x = 11,818,898,846.51/128,627.42
  6. Step 6: Final answer
    x = 91,884.76

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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.