Home / 148,935.70-223,403.55-139,021.30

Finding the Fourth Proportional to 148,935.70, 223,403.55 and 139,021.30

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Solution

The fourth proportional to 148,935.70, 223,403.55 and 139,021.30 is: 208,531.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,935.70 : 223,403.55 = 139,021.30 : x
  2. Step 2: Convert to fraction form
    148,935.70/223,403.55 = 139,021.30/x
  3. Step 3: Cross multiply
    148,935.70x = 223,403.55 × 139,021.30
  4. Step 4: Simplify right side
    148,935.70x = 31,057,851,945.62
  5. Step 5: Solve for x
    x = 31,057,851,945.62/148,935.70
  6. Step 6: Final answer
    x = 208,531.95

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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.