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Finding the Fourth Proportional to 163,485, 245,095.11 and 51,107.31

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Solution

The fourth proportional to 163,485, 245,095.11 and 51,107.31 is: 76,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,485 : 245,095.11 = 51,107.31 : x
  2. Step 2: Convert to fraction form
    163,485/245,095.11 = 51,107.31/x
  3. Step 3: Cross multiply
    163,485x = 245,095.11 × 51,107.31
  4. Step 4: Simplify right side
    163,485x = 12,526,151,766.25
  5. Step 5: Solve for x
    x = 12,526,151,766.25/163,485
  6. Step 6: Final answer
    x = 76,619.58

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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.