Home / 120,724.79-181,090.98-57,551.81

Finding the Fourth Proportional to 120,724.79, 181,090.98 and 57,551.81

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Solution

The fourth proportional to 120,724.79, 181,090.98 and 57,551.81 is: 86,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.79 : 181,090.98 = 57,551.81 : x
  2. Step 2: Convert to fraction form
    120,724.79/181,090.98 = 57,551.81/x
  3. Step 3: Cross multiply
    120,724.79x = 181,090.98 × 57,551.81
  4. Step 4: Simplify right side
    120,724.79x = 10,422,112,768.22
  5. Step 5: Solve for x
    x = 10,422,112,768.22/120,724.79
  6. Step 6: Final answer
    x = 86,329.52

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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.