Home / 109,512-151,131.83-61,764.26

Finding the Fourth Proportional to 109,512, 151,131.83 and 61,764.26

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Solution

The fourth proportional to 109,512, 151,131.83 and 61,764.26 is: 85,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,512 : 151,131.83 = 61,764.26 : x
  2. Step 2: Convert to fraction form
    109,512/151,131.83 = 61,764.26/x
  3. Step 3: Cross multiply
    109,512x = 151,131.83 × 61,764.26
  4. Step 4: Simplify right side
    109,512x = 9,334,544,577.92
  5. Step 5: Solve for x
    x = 9,334,544,577.92/109,512
  6. Step 6: Final answer
    x = 85,237.64

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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.