Home / 138,893.29-208,340.04-33,712.36

Finding the Fourth Proportional to 138,893.29, 208,340.04 and 33,712.36

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Solution

The fourth proportional to 138,893.29, 208,340.04 and 33,712.36 is: 50,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,893.29 : 208,340.04 = 33,712.36 : x
  2. Step 2: Convert to fraction form
    138,893.29/208,340.04 = 33,712.36/x
  3. Step 3: Cross multiply
    138,893.29x = 208,340.04 × 33,712.36
  4. Step 4: Simplify right side
    138,893.29x = 7,023,634,430.89
  5. Step 5: Solve for x
    x = 7,023,634,430.89/138,893.29
  6. Step 6: Final answer
    x = 50,568.57

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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.