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Finding the Fourth Proportional to 163,654.40, 245,317.14 and 68,907.71

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Solution

The fourth proportional to 163,654.40, 245,317.14 and 68,907.71 is: 103,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,654.40 : 245,317.14 = 68,907.71 : x
  2. Step 2: Convert to fraction form
    163,654.40/245,317.14 = 68,907.71/x
  3. Step 3: Cross multiply
    163,654.40x = 245,317.14 × 68,907.71
  4. Step 4: Simplify right side
    163,654.40x = 16,904,241,114.56
  5. Step 5: Solve for x
    x = 16,904,241,114.56/163,654.40
  6. Step 6: Final answer
    x = 103,292.31

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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.