Home / 112,015.74-154,581.64-61,714.74

Finding the Fourth Proportional to 112,015.74, 154,581.64 and 61,714.74

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Solution

The fourth proportional to 112,015.74, 154,581.64 and 61,714.74 is: 85,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.74 : 154,581.64 = 61,714.74 : x
  2. Step 2: Convert to fraction form
    112,015.74/154,581.64 = 61,714.74/x
  3. Step 3: Cross multiply
    112,015.74x = 154,581.64 × 61,714.74
  4. Step 4: Simplify right side
    112,015.74x = 9,539,965,567.09
  5. Step 5: Solve for x
    x = 9,539,965,567.09/112,015.74
  6. Step 6: Final answer
    x = 85,166.30

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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.