Home / 112,015.44-154,581.32-61,714

Finding the Fourth Proportional to 112,015.44, 154,581.32 and 61,714

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Solution

The fourth proportional to 112,015.44, 154,581.32 and 61,714 is: 85,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.44 : 154,581.32 = 61,714 : x
  2. Step 2: Convert to fraction form
    112,015.44/154,581.32 = 61,714/x
  3. Step 3: Cross multiply
    112,015.44x = 154,581.32 × 61,714
  4. Step 4: Simplify right side
    112,015.44x = 9,539,831,582.48
  5. Step 5: Solve for x
    x = 9,539,831,582.48/112,015.44
  6. Step 6: Final answer
    x = 85,165.33

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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.