Home / 125,155.44-187,785-50,328.59

Finding the Fourth Proportional to 125,155.44, 187,785 and 50,328.59

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Solution

The fourth proportional to 125,155.44, 187,785 and 50,328.59 is: 75,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,155.44 : 187,785 = 50,328.59 : x
  2. Step 2: Convert to fraction form
    125,155.44/187,785 = 50,328.59/x
  3. Step 3: Cross multiply
    125,155.44x = 187,785 × 50,328.59
  4. Step 4: Simplify right side
    125,155.44x = 9,450,953,334.23
  5. Step 5: Solve for x
    x = 9,450,953,334.23/125,155.44
  6. Step 6: Final answer
    x = 75,513.72

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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.