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Finding the Fourth Proportional to 137,576.34, 206,329.88 and 53,307.59

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Solution

The fourth proportional to 137,576.34, 206,329.88 and 53,307.59 is: 79,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,576.34 : 206,329.88 = 53,307.59 : x
  2. Step 2: Convert to fraction form
    137,576.34/206,329.88 = 53,307.59/x
  3. Step 3: Cross multiply
    137,576.34x = 206,329.88 × 53,307.59
  4. Step 4: Simplify right side
    137,576.34x = 10,998,947,749.41
  5. Step 5: Solve for x
    x = 10,998,947,749.41/137,576.34
  6. Step 6: Final answer
    x = 79,947.96

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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.