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Finding the Fourth Proportional to 163,684.87, 245,526.62 and 45,355.87

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Solution

The fourth proportional to 163,684.87, 245,526.62 and 45,355.87 is: 68,033.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,684.87 : 245,526.62 = 45,355.87 : x
  2. Step 2: Convert to fraction form
    163,684.87/245,526.62 = 45,355.87/x
  3. Step 3: Cross multiply
    163,684.87x = 245,526.62 × 45,355.87
  4. Step 4: Simplify right side
    163,684.87x = 11,136,072,230.63
  5. Step 5: Solve for x
    x = 11,136,072,230.63/163,684.87
  6. Step 6: Final answer
    x = 68,033.61

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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.