Home / 213,478.74-320,328.88-95,122.55

Finding the Fourth Proportional to 213,478.74, 320,328.88 and 95,122.55

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Solution

The fourth proportional to 213,478.74, 320,328.88 and 95,122.55 is: 142,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,478.74 : 320,328.88 = 95,122.55 : x
  2. Step 2: Convert to fraction form
    213,478.74/320,328.88 = 95,122.55/x
  3. Step 3: Cross multiply
    213,478.74x = 320,328.88 × 95,122.55
  4. Step 4: Simplify right side
    213,478.74x = 30,470,500,467.26
  5. Step 5: Solve for x
    x = 30,470,500,467.26/213,478.74
  6. Step 6: Final answer
    x = 142,733.18

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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.