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Finding the Fourth Proportional to 163,674.85, 245,572.24 and 68,928.88

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Solution

The fourth proportional to 163,674.85, 245,572.24 and 68,928.88 is: 103,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,674.85 : 245,572.24 = 68,928.88 : x
  2. Step 2: Convert to fraction form
    163,674.85/245,572.24 = 68,928.88/x
  3. Step 3: Cross multiply
    163,674.85x = 245,572.24 × 68,928.88
  4. Step 4: Simplify right side
    163,674.85x = 16,927,020,247.19
  5. Step 5: Solve for x
    x = 16,927,020,247.19/163,674.85
  6. Step 6: Final answer
    x = 103,418.58

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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.