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Finding the Fourth Proportional to 124,020.56, 186,043 and 49,137.68

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Solution

The fourth proportional to 124,020.56, 186,043 and 49,137.68 is: 73,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,020.56 : 186,043 = 49,137.68 : x
  2. Step 2: Convert to fraction form
    124,020.56/186,043 = 49,137.68/x
  3. Step 3: Cross multiply
    124,020.56x = 186,043 × 49,137.68
  4. Step 4: Simplify right side
    124,020.56x = 9,141,721,400.24
  5. Step 5: Solve for x
    x = 9,141,721,400.24/124,020.56
  6. Step 6: Final answer
    x = 73,711.34

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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.