Home / 135,254.03-186,610.25-77,891.83

Finding the Fourth Proportional to 135,254.03, 186,610.25 and 77,891.83

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Solution

The fourth proportional to 135,254.03, 186,610.25 and 77,891.83 is: 107,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,254.03 : 186,610.25 = 77,891.83 : x
  2. Step 2: Convert to fraction form
    135,254.03/186,610.25 = 77,891.83/x
  3. Step 3: Cross multiply
    135,254.03x = 186,610.25 × 77,891.83
  4. Step 4: Simplify right side
    135,254.03x = 14,535,413,597.46
  5. Step 5: Solve for x
    x = 14,535,413,597.46/135,254.03
  6. Step 6: Final answer
    x = 107,467.51

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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.