Home / 145,721.97-218,520.54-50,923.80

Finding the Fourth Proportional to 145,721.97, 218,520.54 and 50,923.80

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Solution

The fourth proportional to 145,721.97, 218,520.54 and 50,923.80 is: 76,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,721.97 : 218,520.54 = 50,923.80 : x
  2. Step 2: Convert to fraction form
    145,721.97/218,520.54 = 50,923.80/x
  3. Step 3: Cross multiply
    145,721.97x = 218,520.54 × 50,923.80
  4. Step 4: Simplify right side
    145,721.97x = 11,127,896,274.85
  5. Step 5: Solve for x
    x = 11,127,896,274.85/145,721.97
  6. Step 6: Final answer
    x = 76,363.89

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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.