Home / 120,909.36-181,087.46-57,773.87

Finding the Fourth Proportional to 120,909.36, 181,087.46 and 57,773.87

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Solution

The fourth proportional to 120,909.36, 181,087.46 and 57,773.87 is: 86,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,909.36 : 181,087.46 = 57,773.87 : x
  2. Step 2: Convert to fraction form
    120,909.36/181,087.46 = 57,773.87/x
  3. Step 3: Cross multiply
    120,909.36x = 181,087.46 × 57,773.87
  4. Step 4: Simplify right side
    120,909.36x = 10,462,122,178.36
  5. Step 5: Solve for x
    x = 10,462,122,178.36/120,909.36
  6. Step 6: Final answer
    x = 86,528.64

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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.