Home / 114,235.76-171,340.62-72,245.36

Finding the Fourth Proportional to 114,235.76, 171,340.62 and 72,245.36

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Solution

The fourth proportional to 114,235.76, 171,340.62 and 72,245.36 is: 108,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,235.76 : 171,340.62 = 72,245.36 : x
  2. Step 2: Convert to fraction form
    114,235.76/171,340.62 = 72,245.36/x
  3. Step 3: Cross multiply
    114,235.76x = 171,340.62 × 72,245.36
  4. Step 4: Simplify right side
    114,235.76x = 12,378,564,774.52
  5. Step 5: Solve for x
    x = 12,378,564,774.52/114,235.76
  6. Step 6: Final answer
    x = 108,359.81

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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.