Home / 135,973.98-203,989.86-57,042.72

Finding the Fourth Proportional to 135,973.98, 203,989.86 and 57,042.72

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Solution

The fourth proportional to 135,973.98, 203,989.86 and 57,042.72 is: 85,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,973.98 : 203,989.86 = 57,042.72 : x
  2. Step 2: Convert to fraction form
    135,973.98/203,989.86 = 57,042.72/x
  3. Step 3: Cross multiply
    135,973.98x = 203,989.86 × 57,042.72
  4. Step 4: Simplify right side
    135,973.98x = 11,636,136,466.82
  5. Step 5: Solve for x
    x = 11,636,136,466.82/135,973.98
  6. Step 6: Final answer
    x = 85,576.20

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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.