Home / 109,212.46-163,608.58-66,969.24

Finding the Fourth Proportional to 109,212.46, 163,608.58 and 66,969.24

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Solution

The fourth proportional to 109,212.46, 163,608.58 and 66,969.24 is: 100,325.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,212.46 : 163,608.58 = 66,969.24 : x
  2. Step 2: Convert to fraction form
    109,212.46/163,608.58 = 66,969.24/x
  3. Step 3: Cross multiply
    109,212.46x = 163,608.58 × 66,969.24
  4. Step 4: Simplify right side
    109,212.46x = 10,956,742,260.08
  5. Step 5: Solve for x
    x = 10,956,742,260.08/109,212.46
  6. Step 6: Final answer
    x = 100,325.02

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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.