Home / 192,907.34-289,011.08-142,431.38

Finding the Fourth Proportional to 192,907.34, 289,011.08 and 142,431.38

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Solution

The fourth proportional to 192,907.34, 289,011.08 and 142,431.38 is: 213,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,907.34 : 289,011.08 = 142,431.38 : x
  2. Step 2: Convert to fraction form
    192,907.34/289,011.08 = 142,431.38/x
  3. Step 3: Cross multiply
    192,907.34x = 289,011.08 × 142,431.38
  4. Step 4: Simplify right side
    192,907.34x = 41,164,244,802.48
  5. Step 5: Solve for x
    x = 41,164,244,802.48/192,907.34
  6. Step 6: Final answer
    x = 213,388.70

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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.