Home / 120,835.76-166,834.12-75,577.84

Finding the Fourth Proportional to 120,835.76, 166,834.12 and 75,577.84

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Solution

The fourth proportional to 120,835.76, 166,834.12 and 75,577.84 is: 104,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.76 : 166,834.12 = 75,577.84 : x
  2. Step 2: Convert to fraction form
    120,835.76/166,834.12 = 75,577.84/x
  3. Step 3: Cross multiply
    120,835.76x = 166,834.12 × 75,577.84
  4. Step 4: Simplify right side
    120,835.76x = 12,608,962,427.90
  5. Step 5: Solve for x
    x = 12,608,962,427.90/120,835.76
  6. Step 6: Final answer
    x = 104,347.94

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1.5x scale

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.