Home / 135,911.72-203,828.70-42,392.36

Finding the Fourth Proportional to 135,911.72, 203,828.70 and 42,392.36

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Solution

The fourth proportional to 135,911.72, 203,828.70 and 42,392.36 is: 63,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,911.72 : 203,828.70 = 42,392.36 : x
  2. Step 2: Convert to fraction form
    135,911.72/203,828.70 = 42,392.36/x
  3. Step 3: Cross multiply
    135,911.72x = 203,828.70 × 42,392.36
  4. Step 4: Simplify right side
    135,911.72x = 8,640,779,628.73
  5. Step 5: Solve for x
    x = 8,640,779,628.73/135,911.72
  6. Step 6: Final answer
    x = 63,576.41

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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.