Home / 138,790.41-208,154.46-63,838.56

Finding the Fourth Proportional to 138,790.41, 208,154.46 and 63,838.56

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Solution

The fourth proportional to 138,790.41, 208,154.46 and 63,838.56 is: 95,743.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,790.41 : 208,154.46 = 63,838.56 : x
  2. Step 2: Convert to fraction form
    138,790.41/208,154.46 = 63,838.56/x
  3. Step 3: Cross multiply
    138,790.41x = 208,154.46 × 63,838.56
  4. Step 4: Simplify right side
    138,790.41x = 13,288,280,983.98
  5. Step 5: Solve for x
    x = 13,288,280,983.98/138,790.41
  6. Step 6: Final answer
    x = 95,743.51

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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.