Home / 103,215.97-154,822.51-28,336.02

Finding the Fourth Proportional to 103,215.97, 154,822.51 and 28,336.02

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Solution

The fourth proportional to 103,215.97, 154,822.51 and 28,336.02 is: 42,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,215.97 : 154,822.51 = 28,336.02 : x
  2. Step 2: Convert to fraction form
    103,215.97/154,822.51 = 28,336.02/x
  3. Step 3: Cross multiply
    103,215.97x = 154,822.51 × 28,336.02
  4. Step 4: Simplify right side
    103,215.97x = 4,387,053,739.81
  5. Step 5: Solve for x
    x = 4,387,053,739.81/103,215.97
  6. Step 6: Final answer
    x = 42,503.63

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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.