Home / 145,755.08-218,632.62-83,381.84

Finding the Fourth Proportional to 145,755.08, 218,632.62 and 83,381.84

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Solution

The fourth proportional to 145,755.08, 218,632.62 and 83,381.84 is: 125,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,755.08 : 218,632.62 = 83,381.84 : x
  2. Step 2: Convert to fraction form
    145,755.08/218,632.62 = 83,381.84/x
  3. Step 3: Cross multiply
    145,755.08x = 218,632.62 × 83,381.84
  4. Step 4: Simplify right side
    145,755.08x = 18,229,990,139.62
  5. Step 5: Solve for x
    x = 18,229,990,139.62/145,755.08
  6. Step 6: Final answer
    x = 125,072.76

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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.