Home / 147,379.22-221,047.30-72,479.27

Finding the Fourth Proportional to 147,379.22, 221,047.30 and 72,479.27

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Solution

The fourth proportional to 147,379.22, 221,047.30 and 72,479.27 is: 108,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,379.22 : 221,047.30 = 72,479.27 : x
  2. Step 2: Convert to fraction form
    147,379.22/221,047.30 = 72,479.27/x
  3. Step 3: Cross multiply
    147,379.22x = 221,047.30 × 72,479.27
  4. Step 4: Simplify right side
    147,379.22x = 16,021,345,471.84
  5. Step 5: Solve for x
    x = 16,021,345,471.84/147,379.22
  6. Step 6: Final answer
    x = 108,708.31

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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.