Home / 355,123.26-532,917.90-130,485.56

Finding the Fourth Proportional to 355,123.26, 532,917.90 and 130,485.56

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Solution

The fourth proportional to 355,123.26, 532,917.90 and 130,485.56 is: 195,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,123.26 : 532,917.90 = 130,485.56 : x
  2. Step 2: Convert to fraction form
    355,123.26/532,917.90 = 130,485.56/x
  3. Step 3: Cross multiply
    355,123.26x = 532,917.90 × 130,485.56
  4. Step 4: Simplify right side
    355,123.26x = 69,538,087,950.93
  5. Step 5: Solve for x
    x = 69,538,087,950.93/355,123.26
  6. Step 6: Final answer
    x = 195,813.95

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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.