Home / 106,213.02-159,282.40-31,313.28

Finding the Fourth Proportional to 106,213.02, 159,282.40 and 31,313.28

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Solution

The fourth proportional to 106,213.02, 159,282.40 and 31,313.28 is: 46,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,213.02 : 159,282.40 = 31,313.28 : x
  2. Step 2: Convert to fraction form
    106,213.02/159,282.40 = 31,313.28/x
  3. Step 3: Cross multiply
    106,213.02x = 159,282.40 × 31,313.28
  4. Step 4: Simplify right side
    106,213.02x = 4,987,654,968.01
  5. Step 5: Solve for x
    x = 4,987,654,968.01/106,213.02
  6. Step 6: Final answer
    x = 46,958.98

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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.