Home / 106,221.84-146,525.40-66,408.72

Finding the Fourth Proportional to 106,221.84, 146,525.40 and 66,408.72

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Solution

The fourth proportional to 106,221.84, 146,525.40 and 66,408.72 is: 91,606.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,221.84 : 146,525.40 = 66,408.72 : x
  2. Step 2: Convert to fraction form
    106,221.84/146,525.40 = 66,408.72/x
  3. Step 3: Cross multiply
    106,221.84x = 146,525.40 × 66,408.72
  4. Step 4: Simplify right side
    106,221.84x = 9,730,564,261.49
  5. Step 5: Solve for x
    x = 9,730,564,261.49/106,221.84
  6. Step 6: Final answer
    x = 91,606.06

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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.