Home / 112,020.33-154,587.99-61,719.33

Finding the Fourth Proportional to 112,020.33, 154,587.99 and 61,719.33

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Solution

The fourth proportional to 112,020.33, 154,587.99 and 61,719.33 is: 85,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.33 : 154,587.99 = 61,719.33 : x
  2. Step 2: Convert to fraction form
    112,020.33/154,587.99 = 61,719.33/x
  3. Step 3: Cross multiply
    112,020.33x = 154,587.99 × 61,719.33
  4. Step 4: Simplify right side
    112,020.33x = 9,541,067,980.00
  5. Step 5: Solve for x
    x = 9,541,067,980.00/112,020.33
  6. Step 6: Final answer
    x = 85,172.64

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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.