Home / 109,664.99-151,336.37-61,920.35

Finding the Fourth Proportional to 109,664.99, 151,336.37 and 61,920.35

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Solution

The fourth proportional to 109,664.99, 151,336.37 and 61,920.35 is: 85,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,664.99 : 151,336.37 = 61,920.35 : x
  2. Step 2: Convert to fraction form
    109,664.99/151,336.37 = 61,920.35/x
  3. Step 3: Cross multiply
    109,664.99x = 151,336.37 × 61,920.35
  4. Step 4: Simplify right side
    109,664.99x = 9,370,800,396.25
  5. Step 5: Solve for x
    x = 9,370,800,396.25/109,664.99
  6. Step 6: Final answer
    x = 85,449.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.