Home / 109,313.13-163,969.69-30,429.41

Finding the Fourth Proportional to 109,313.13, 163,969.69 and 30,429.41

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Solution

The fourth proportional to 109,313.13, 163,969.69 and 30,429.41 is: 45,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,313.13 : 163,969.69 = 30,429.41 : x
  2. Step 2: Convert to fraction form
    109,313.13/163,969.69 = 30,429.41/x
  3. Step 3: Cross multiply
    109,313.13x = 163,969.69 × 30,429.41
  4. Step 4: Simplify right side
    109,313.13x = 4,989,500,924.58
  5. Step 5: Solve for x
    x = 4,989,500,924.58/109,313.13
  6. Step 6: Final answer
    x = 45,644.11

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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.