Home / 101,968.76-152,975.03-42,770.31

Finding the Fourth Proportional to 101,968.76, 152,975.03 and 42,770.31

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Solution

The fourth proportional to 101,968.76, 152,975.03 and 42,770.31 is: 64,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,968.76 : 152,975.03 = 42,770.31 : x
  2. Step 2: Convert to fraction form
    101,968.76/152,975.03 = 42,770.31/x
  3. Step 3: Cross multiply
    101,968.76x = 152,975.03 × 42,770.31
  4. Step 4: Simplify right side
    101,968.76x = 6,542,789,241.51
  5. Step 5: Solve for x
    x = 6,542,789,241.51/101,968.76
  6. Step 6: Final answer
    x = 64,164.65

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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.