Home / 219,918.96-329,130.72-135,732.36

Finding the Fourth Proportional to 219,918.96, 329,130.72 and 135,732.36

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Solution

The fourth proportional to 219,918.96, 329,130.72 and 135,732.36 is: 203,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,918.96 : 329,130.72 = 135,732.36 : x
  2. Step 2: Convert to fraction form
    219,918.96/329,130.72 = 135,732.36/x
  3. Step 3: Cross multiply
    219,918.96x = 329,130.72 × 135,732.36
  4. Step 4: Simplify right side
    219,918.96x = 44,673,689,374.10
  5. Step 5: Solve for x
    x = 44,673,689,374.10/219,918.96
  6. Step 6: Final answer
    x = 203,137.05

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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.