Home / 106,137.12-146,408.40-66,324

Finding the Fourth Proportional to 106,137.12, 146,408.40 and 66,324

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Solution

The fourth proportional to 106,137.12, 146,408.40 and 66,324 is: 91,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,137.12 : 146,408.40 = 66,324 : x
  2. Step 2: Convert to fraction form
    106,137.12/146,408.40 = 66,324/x
  3. Step 3: Cross multiply
    106,137.12x = 146,408.40 × 66,324
  4. Step 4: Simplify right side
    106,137.12x = 9,710,390,721.60
  5. Step 5: Solve for x
    x = 9,710,390,721.60/106,137.12
  6. Step 6: Final answer
    x = 91,489.11

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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.