Home / 111,948.06-154,488.33-61,647.06

Finding the Fourth Proportional to 111,948.06, 154,488.33 and 61,647.06

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Solution

The fourth proportional to 111,948.06, 154,488.33 and 61,647.06 is: 85,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,948.06 : 154,488.33 = 61,647.06 : x
  2. Step 2: Convert to fraction form
    111,948.06/154,488.33 = 61,647.06/x
  3. Step 3: Cross multiply
    111,948.06x = 154,488.33 × 61,647.06
  4. Step 4: Simplify right side
    111,948.06x = 9,523,751,348.81
  5. Step 5: Solve for x
    x = 9,523,751,348.81/111,948.06
  6. Step 6: Final answer
    x = 85,072.95

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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.