Home / 99,408.03-137,183.02-54,085.95

Finding the Fourth Proportional to 99,408.03, 137,183.02 and 54,085.95

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Solution

The fourth proportional to 99,408.03, 137,183.02 and 54,085.95 is: 74,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,408.03 : 137,183.02 = 54,085.95 : x
  2. Step 2: Convert to fraction form
    99,408.03/137,183.02 = 54,085.95/x
  3. Step 3: Cross multiply
    99,408.03x = 137,183.02 × 54,085.95
  4. Step 4: Simplify right side
    99,408.03x = 7,419,673,960.57
  5. Step 5: Solve for x
    x = 7,419,673,960.57/99,408.03
  6. Step 6: Final answer
    x = 74,638.58

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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.