Home / 147,879.36-221,811.84-54,379.20

Finding the Fourth Proportional to 147,879.36, 221,811.84 and 54,379.20

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Solution

The fourth proportional to 147,879.36, 221,811.84 and 54,379.20 is: 81,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,879.36 : 221,811.84 = 54,379.20 : x
  2. Step 2: Convert to fraction form
    147,879.36/221,811.84 = 54,379.20/x
  3. Step 3: Cross multiply
    147,879.36x = 221,811.84 × 54,379.20
  4. Step 4: Simplify right side
    147,879.36x = 12,061,950,409.73
  5. Step 5: Solve for x
    x = 12,061,950,409.73/147,879.36
  6. Step 6: Final answer
    x = 81,566.15

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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.