Home / 110,431.41-152,356.48-72,213.31

Finding the Fourth Proportional to 110,431.41, 152,356.48 and 72,213.31

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Solution

The fourth proportional to 110,431.41, 152,356.48 and 72,213.31 is: 99,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,431.41 : 152,356.48 = 72,213.31 : x
  2. Step 2: Convert to fraction form
    110,431.41/152,356.48 = 72,213.31/x
  3. Step 3: Cross multiply
    110,431.41x = 152,356.48 × 72,213.31
  4. Step 4: Simplify right side
    110,431.41x = 11,002,165,720.75
  5. Step 5: Solve for x
    x = 11,002,165,720.75/110,431.41
  6. Step 6: Final answer
    x = 99,628.95

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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.