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Finding the Fourth Proportional to 137,856.57, 206,671.85 and 49,059.51

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Solution

The fourth proportional to 137,856.57, 206,671.85 and 49,059.51 is: 73,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,856.57 : 206,671.85 = 49,059.51 : x
  2. Step 2: Convert to fraction form
    137,856.57/206,671.85 = 49,059.51/x
  3. Step 3: Cross multiply
    137,856.57x = 206,671.85 × 49,059.51
  4. Step 4: Simplify right side
    137,856.57x = 10,139,219,131.41
  5. Step 5: Solve for x
    x = 10,139,219,131.41/137,856.57
  6. Step 6: Final answer
    x = 73,549.05

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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.