Home / 120,027.42-180,154.09-60,905.52

Finding the Fourth Proportional to 120,027.42, 180,154.09 and 60,905.52

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Solution

The fourth proportional to 120,027.42, 180,154.09 and 60,905.52 is: 91,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,027.42 : 180,154.09 = 60,905.52 : x
  2. Step 2: Convert to fraction form
    120,027.42/180,154.09 = 60,905.52/x
  3. Step 3: Cross multiply
    120,027.42x = 180,154.09 × 60,905.52
  4. Step 4: Simplify right side
    120,027.42x = 10,972,378,531.58
  5. Step 5: Solve for x
    x = 10,972,378,531.58/120,027.42
  6. Step 6: Final answer
    x = 91,415.60

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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.