Home / 103,325.40-154,988.10-102,669.30

Finding the Fourth Proportional to 103,325.40, 154,988.10 and 102,669.30

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Solution

The fourth proportional to 103,325.40, 154,988.10 and 102,669.30 is: 154,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,325.40 : 154,988.10 = 102,669.30 : x
  2. Step 2: Convert to fraction form
    103,325.40/154,988.10 = 102,669.30/x
  3. Step 3: Cross multiply
    103,325.40x = 154,988.10 × 102,669.30
  4. Step 4: Simplify right side
    103,325.40x = 15,912,519,735.33
  5. Step 5: Solve for x
    x = 15,912,519,735.33/103,325.40
  6. Step 6: Final answer
    x = 154,003.95

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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.