Home / 111,929.14-154,463.25-61,629.94

Finding the Fourth Proportional to 111,929.14, 154,463.25 and 61,629.94

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Solution

The fourth proportional to 111,929.14, 154,463.25 and 61,629.94 is: 85,049.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,929.14 : 154,463.25 = 61,629.94 : x
  2. Step 2: Convert to fraction form
    111,929.14/154,463.25 = 61,629.94/x
  3. Step 3: Cross multiply
    111,929.14x = 154,463.25 × 61,629.94
  4. Step 4: Simplify right side
    111,929.14x = 9,519,560,829.71
  5. Step 5: Solve for x
    x = 9,519,560,829.71/111,929.14
  6. Step 6: Final answer
    x = 85,049.89

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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.