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Finding the Fourth Proportional to 123,450.40, 185,175.60 and 64,401.40

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Solution

The fourth proportional to 123,450.40, 185,175.60 and 64,401.40 is: 96,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,450.40 : 185,175.60 = 64,401.40 : x
  2. Step 2: Convert to fraction form
    123,450.40/185,175.60 = 64,401.40/x
  3. Step 3: Cross multiply
    123,450.40x = 185,175.60 × 64,401.40
  4. Step 4: Simplify right side
    123,450.40x = 11,925,567,885.84
  5. Step 5: Solve for x
    x = 11,925,567,885.84/123,450.40
  6. Step 6: Final answer
    x = 96,602.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.