Home / 213,390.90-320,172.39-94,981.23

Finding the Fourth Proportional to 213,390.90, 320,172.39 and 94,981.23

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Solution

The fourth proportional to 213,390.90, 320,172.39 and 94,981.23 is: 142,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,390.90 : 320,172.39 = 94,981.23 : x
  2. Step 2: Convert to fraction form
    213,390.90/320,172.39 = 94,981.23/x
  3. Step 3: Cross multiply
    213,390.90x = 320,172.39 × 94,981.23
  4. Step 4: Simplify right side
    213,390.90x = 30,410,367,414.24
  5. Step 5: Solve for x
    x = 30,410,367,414.24/213,390.90
  6. Step 6: Final answer
    x = 142,510.14

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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.