Home / 248,456.10-342,861.93-138,074.37

Finding the Fourth Proportional to 248,456.10, 342,861.93 and 138,074.37

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Solution

The fourth proportional to 248,456.10, 342,861.93 and 138,074.37 is: 190,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,456.10 : 342,861.93 = 138,074.37 : x
  2. Step 2: Convert to fraction form
    248,456.10/342,861.93 = 138,074.37/x
  3. Step 3: Cross multiply
    248,456.10x = 342,861.93 × 138,074.37
  4. Step 4: Simplify right side
    248,456.10x = 47,340,444,981.73
  5. Step 5: Solve for x
    x = 47,340,444,981.73/248,456.10
  6. Step 6: Final answer
    x = 190,538.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.