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Finding the Fourth Proportional to 125,321.77, 187,907.54 and 39,895.73

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Solution

The fourth proportional to 125,321.77, 187,907.54 and 39,895.73 is: 59,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,321.77 : 187,907.54 = 39,895.73 : x
  2. Step 2: Convert to fraction form
    125,321.77/187,907.54 = 39,895.73/x
  3. Step 3: Cross multiply
    125,321.77x = 187,907.54 × 39,895.73
  4. Step 4: Simplify right side
    125,321.77x = 7,496,707,341.79
  5. Step 5: Solve for x
    x = 7,496,707,341.79/125,321.77
  6. Step 6: Final answer
    x = 59,819.67

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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.