Home / 109,284.81-163,935.86-30,398.78

Finding the Fourth Proportional to 109,284.81, 163,935.86 and 30,398.78

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Solution

The fourth proportional to 109,284.81, 163,935.86 and 30,398.78 is: 45,600.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,284.81 : 163,935.86 = 30,398.78 : x
  2. Step 2: Convert to fraction form
    109,284.81/163,935.86 = 30,398.78/x
  3. Step 3: Cross multiply
    109,284.81x = 163,935.86 × 30,398.78
  4. Step 4: Simplify right side
    109,284.81x = 4,983,449,170.58
  5. Step 5: Solve for x
    x = 4,983,449,170.58/109,284.81
  6. Step 6: Final answer
    x = 45,600.57

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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.