Home / 100,755.24-139,036.86-55,425.93

Finding the Fourth Proportional to 100,755.24, 139,036.86 and 55,425.93

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Solution

The fourth proportional to 100,755.24, 139,036.86 and 55,425.93 is: 76,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,755.24 : 139,036.86 = 55,425.93 : x
  2. Step 2: Convert to fraction form
    100,755.24/139,036.86 = 55,425.93/x
  3. Step 3: Cross multiply
    100,755.24x = 139,036.86 × 55,425.93
  4. Step 4: Simplify right side
    100,755.24x = 7,706,247,269.78
  5. Step 5: Solve for x
    x = 7,706,247,269.78/100,755.24
  6. Step 6: Final answer
    x = 76,484.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.