Home / 145,623.06-218,434.39-45,791.98

Finding the Fourth Proportional to 145,623.06, 218,434.39 and 45,791.98

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Solution

The fourth proportional to 145,623.06, 218,434.39 and 45,791.98 is: 68,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,623.06 : 218,434.39 = 45,791.98 : x
  2. Step 2: Convert to fraction form
    145,623.06/218,434.39 = 45,791.98/x
  3. Step 3: Cross multiply
    145,623.06x = 218,434.39 × 45,791.98
  4. Step 4: Simplify right side
    145,623.06x = 10,002,543,218.19
  5. Step 5: Solve for x
    x = 10,002,543,218.19/145,623.06
  6. Step 6: Final answer
    x = 68,687.91

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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.