Home / 111,616.23-154,031.80-60,629.82

Finding the Fourth Proportional to 111,616.23, 154,031.80 and 60,629.82

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Solution

The fourth proportional to 111,616.23, 154,031.80 and 60,629.82 is: 83,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,616.23 : 154,031.80 = 60,629.82 : x
  2. Step 2: Convert to fraction form
    111,616.23/154,031.80 = 60,629.82/x
  3. Step 3: Cross multiply
    111,616.23x = 154,031.80 × 60,629.82
  4. Step 4: Simplify right side
    111,616.23x = 9,338,919,538.12
  5. Step 5: Solve for x
    x = 9,338,919,538.12/111,616.23
  6. Step 6: Final answer
    x = 83,669.91

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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.