Home / 219,824.88-303,370.08-139,222.80

Finding the Fourth Proportional to 219,824.88, 303,370.08 and 139,222.80

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Solution

The fourth proportional to 219,824.88, 303,370.08 and 139,222.80 is: 192,134.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,824.88 : 303,370.08 = 139,222.80 : x
  2. Step 2: Convert to fraction form
    219,824.88/303,370.08 = 139,222.80/x
  3. Step 3: Cross multiply
    219,824.88x = 303,370.08 × 139,222.80
  4. Step 4: Simplify right side
    219,824.88x = 42,236,031,973.82
  5. Step 5: Solve for x
    x = 42,236,031,973.82/219,824.88
  6. Step 6: Final answer
    x = 192,134.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.