Home / 154,664.40-231,996.60-137,038.80

Finding the Fourth Proportional to 154,664.40, 231,996.60 and 137,038.80

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Solution

The fourth proportional to 154,664.40, 231,996.60 and 137,038.80 is: 205,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,664.40 : 231,996.60 = 137,038.80 : x
  2. Step 2: Convert to fraction form
    154,664.40/231,996.60 = 137,038.80/x
  3. Step 3: Cross multiply
    154,664.40x = 231,996.60 × 137,038.80
  4. Step 4: Simplify right side
    154,664.40x = 31,792,535,668.08
  5. Step 5: Solve for x
    x = 31,792,535,668.08/154,664.40
  6. Step 6: Final answer
    x = 205,558.20

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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.