Home / 138,975.96-208,476.24-39,137.04

Finding the Fourth Proportional to 138,975.96, 208,476.24 and 39,137.04

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Solution

The fourth proportional to 138,975.96, 208,476.24 and 39,137.04 is: 58,709.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,975.96 : 208,476.24 = 39,137.04 : x
  2. Step 2: Convert to fraction form
    138,975.96/208,476.24 = 39,137.04/x
  3. Step 3: Cross multiply
    138,975.96x = 208,476.24 × 39,137.04
  4. Step 4: Simplify right side
    138,975.96x = 8,159,142,943.93
  5. Step 5: Solve for x
    x = 8,159,142,943.93/138,975.96
  6. Step 6: Final answer
    x = 58,709.02

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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.