Home / 138,738.96-208,072.02-49,975.92

Finding the Fourth Proportional to 138,738.96, 208,072.02 and 49,975.92

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Solution

The fourth proportional to 138,738.96, 208,072.02 and 49,975.92 is: 74,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,738.96 : 208,072.02 = 49,975.92 : x
  2. Step 2: Convert to fraction form
    138,738.96/208,072.02 = 49,975.92/x
  3. Step 3: Cross multiply
    138,738.96x = 208,072.02 × 49,975.92
  4. Step 4: Simplify right side
    138,738.96x = 10,398,590,625.76
  5. Step 5: Solve for x
    x = 10,398,590,625.76/138,738.96
  6. Step 6: Final answer
    x = 74,950.76

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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.