Home / 138,919.07-208,354.33-39,055.54

Finding the Fourth Proportional to 138,919.07, 208,354.33 and 39,055.54

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Solution

The fourth proportional to 138,919.07, 208,354.33 and 39,055.54 is: 58,576.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,919.07 : 208,354.33 = 39,055.54 : x
  2. Step 2: Convert to fraction form
    138,919.07/208,354.33 = 39,055.54/x
  3. Step 3: Cross multiply
    138,919.07x = 208,354.33 × 39,055.54
  4. Step 4: Simplify right side
    138,919.07x = 8,137,390,869.49
  5. Step 5: Solve for x
    x = 8,137,390,869.49/138,919.07
  6. Step 6: Final answer
    x = 58,576.49

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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.