Home / 219,406.32-329,041.44-79,146.72

Finding the Fourth Proportional to 219,406.32, 329,041.44 and 79,146.72

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Solution

The fourth proportional to 219,406.32, 329,041.44 and 79,146.72 is: 118,695.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,406.32 : 329,041.44 = 79,146.72 : x
  2. Step 2: Convert to fraction form
    219,406.32/329,041.44 = 79,146.72/x
  3. Step 3: Cross multiply
    219,406.32x = 329,041.44 × 79,146.72
  4. Step 4: Simplify right side
    219,406.32x = 26,042,550,720.08
  5. Step 5: Solve for x
    x = 26,042,550,720.08/219,406.32
  6. Step 6: Final answer
    x = 118,695.54

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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.