Home / 148,513.69-222,789.21-72,614.77

Finding the Fourth Proportional to 148,513.69, 222,789.21 and 72,614.77

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Solution

The fourth proportional to 148,513.69, 222,789.21 and 72,614.77 is: 108,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,513.69 : 222,789.21 = 72,614.77 : x
  2. Step 2: Convert to fraction form
    148,513.69/222,789.21 = 72,614.77/x
  3. Step 3: Cross multiply
    148,513.69x = 222,789.21 × 72,614.77
  4. Step 4: Simplify right side
    148,513.69x = 16,177,786,821.81
  5. Step 5: Solve for x
    x = 16,177,786,821.81/148,513.69
  6. Step 6: Final answer
    x = 108,931.28

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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.