Home / 282,563.82-423,431.01-142,129.26

Finding the Fourth Proportional to 282,563.82, 423,431.01 and 142,129.26

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Solution

The fourth proportional to 282,563.82, 423,431.01 and 142,129.26 is: 212,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,563.82 : 423,431.01 = 142,129.26 : x
  2. Step 2: Convert to fraction form
    282,563.82/423,431.01 = 142,129.26/x
  3. Step 3: Cross multiply
    282,563.82x = 423,431.01 × 142,129.26
  4. Step 4: Simplify right side
    282,563.82x = 60,181,936,112.35
  5. Step 5: Solve for x
    x = 60,181,936,112.35/282,563.82
  6. Step 6: Final answer
    x = 212,985.29

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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.