Home / 120,738.51-181,033.89-57,577.95

Finding the Fourth Proportional to 120,738.51, 181,033.89 and 57,577.95

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Solution

The fourth proportional to 120,738.51, 181,033.89 and 57,577.95 is: 86,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,738.51 : 181,033.89 = 57,577.95 : x
  2. Step 2: Convert to fraction form
    120,738.51/181,033.89 = 57,577.95/x
  3. Step 3: Cross multiply
    120,738.51x = 181,033.89 × 57,577.95
  4. Step 4: Simplify right side
    120,738.51x = 10,423,560,266.73
  5. Step 5: Solve for x
    x = 10,423,560,266.73/120,738.51
  6. Step 6: Final answer
    x = 86,331.70

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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.