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Finding the Fourth Proportional to 163,937.86, 245,939.94 and 69,168.28

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Solution

The fourth proportional to 163,937.86, 245,939.94 and 69,168.28 is: 103,766.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,937.86 : 245,939.94 = 69,168.28 : x
  2. Step 2: Convert to fraction form
    163,937.86/245,939.94 = 69,168.28/x
  3. Step 3: Cross multiply
    163,937.86x = 245,939.94 × 69,168.28
  4. Step 4: Simplify right side
    163,937.86x = 17,011,242,806.02
  5. Step 5: Solve for x
    x = 17,011,242,806.02/163,937.86
  6. Step 6: Final answer
    x = 103,766.41

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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.