Home / 120,903.55-166,671.05-84,491.95

Finding the Fourth Proportional to 120,903.55, 166,671.05 and 84,491.95

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Solution

The fourth proportional to 120,903.55, 166,671.05 and 84,491.95 is: 116,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,903.55 : 166,671.05 = 84,491.95 : x
  2. Step 2: Convert to fraction form
    120,903.55/166,671.05 = 84,491.95/x
  3. Step 3: Cross multiply
    120,903.55x = 166,671.05 × 84,491.95
  4. Step 4: Simplify right side
    120,903.55x = 14,082,361,817.60
  5. Step 5: Solve for x
    x = 14,082,361,817.60/120,903.55
  6. Step 6: Final answer
    x = 116,476.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.