Home / 109,238.40-163,624.32-67,559.04

Finding the Fourth Proportional to 109,238.40, 163,624.32 and 67,559.04

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Solution

The fourth proportional to 109,238.40, 163,624.32 and 67,559.04 is: 101,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,238.40 : 163,624.32 = 67,559.04 : x
  2. Step 2: Convert to fraction form
    109,238.40/163,624.32 = 67,559.04/x
  3. Step 3: Cross multiply
    109,238.40x = 163,624.32 × 67,559.04
  4. Step 4: Simplify right side
    109,238.40x = 11,054,301,979.85
  5. Step 5: Solve for x
    x = 11,054,301,979.85/109,238.40
  6. Step 6: Final answer
    x = 101,194.29

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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.