Home / 120,726.82-181,127.31-57,627.46

Finding the Fourth Proportional to 120,726.82, 181,127.31 and 57,627.46

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Solution

The fourth proportional to 120,726.82, 181,127.31 and 57,627.46 is: 86,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,726.82 : 181,127.31 = 57,627.46 : x
  2. Step 2: Convert to fraction form
    120,726.82/181,127.31 = 57,627.46/x
  3. Step 3: Cross multiply
    120,726.82x = 181,127.31 × 57,627.46
  4. Step 4: Simplify right side
    120,726.82x = 10,437,906,811.93
  5. Step 5: Solve for x
    x = 10,437,906,811.93/120,726.82
  6. Step 6: Final answer
    x = 86,458.89

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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.