Home / 101,972.43-140,721.84-56,654.63

Finding the Fourth Proportional to 101,972.43, 140,721.84 and 56,654.63

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Solution

The fourth proportional to 101,972.43, 140,721.84 and 56,654.63 is: 78,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,972.43 : 140,721.84 = 56,654.63 : x
  2. Step 2: Convert to fraction form
    101,972.43/140,721.84 = 56,654.63/x
  3. Step 3: Cross multiply
    101,972.43x = 140,721.84 × 56,654.63
  4. Step 4: Simplify right side
    101,972.43x = 7,972,543,074.51
  5. Step 5: Solve for x
    x = 7,972,543,074.51/101,972.43
  6. Step 6: Final answer
    x = 78,183.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.