Home / 149,732.40-206,462.88-102,013.68

Finding the Fourth Proportional to 149,732.40, 206,462.88 and 102,013.68

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Solution

The fourth proportional to 149,732.40, 206,462.88 and 102,013.68 is: 140,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,732.40 : 206,462.88 = 102,013.68 : x
  2. Step 2: Convert to fraction form
    149,732.40/206,462.88 = 102,013.68/x
  3. Step 3: Cross multiply
    149,732.40x = 206,462.88 × 102,013.68
  4. Step 4: Simplify right side
    149,732.40x = 21,062,038,172.20
  5. Step 5: Solve for x
    x = 21,062,038,172.20/149,732.40
  6. Step 6: Final answer
    x = 140,664.53

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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.