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Finding the Fourth Proportional to 120,388.88, 180,607.44 and 82,966.88

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Solution

The fourth proportional to 120,388.88, 180,607.44 and 82,966.88 is: 124,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,388.88 : 180,607.44 = 82,966.88 : x
  2. Step 2: Convert to fraction form
    120,388.88/180,607.44 = 82,966.88/x
  3. Step 3: Cross multiply
    120,388.88x = 180,607.44 × 82,966.88
  4. Step 4: Simplify right side
    120,388.88x = 14,984,435,801.59
  5. Step 5: Solve for x
    x = 14,984,435,801.59/120,388.88
  6. Step 6: Final answer
    x = 124,466.94

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1.5x scale

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.