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Finding the Fourth Proportional to 163,990.08, 245,879.76 and 69,194.34

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Solution

The fourth proportional to 163,990.08, 245,879.76 and 69,194.34 is: 103,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,990.08 : 245,879.76 = 69,194.34 : x
  2. Step 2: Convert to fraction form
    163,990.08/245,879.76 = 69,194.34/x
  3. Step 3: Cross multiply
    163,990.08x = 245,879.76 × 69,194.34
  4. Step 4: Simplify right side
    163,990.08x = 17,013,487,712.56
  5. Step 5: Solve for x
    x = 17,013,487,712.56/163,990.08
  6. Step 6: Final answer
    x = 103,747.05

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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.