Home / 120,833.28-180,973.82-57,697.62

Finding the Fourth Proportional to 120,833.28, 180,973.82 and 57,697.62

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Solution

The fourth proportional to 120,833.28, 180,973.82 and 57,697.62 is: 86,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,833.28 : 180,973.82 = 57,697.62 : x
  2. Step 2: Convert to fraction form
    120,833.28/180,973.82 = 57,697.62/x
  3. Step 3: Cross multiply
    120,833.28x = 180,973.82 × 57,697.62
  4. Step 4: Simplify right side
    120,833.28x = 10,441,758,840.55
  5. Step 5: Solve for x
    x = 10,441,758,840.55/120,833.28
  6. Step 6: Final answer
    x = 86,414.59

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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.