Home / 120,236.82-180,182.70-67,535.39

Finding the Fourth Proportional to 120,236.82, 180,182.70 and 67,535.39

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Solution

The fourth proportional to 120,236.82, 180,182.70 and 67,535.39 is: 101,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,236.82 : 180,182.70 = 67,535.39 : x
  2. Step 2: Convert to fraction form
    120,236.82/180,182.70 = 67,535.39/x
  3. Step 3: Cross multiply
    120,236.82x = 180,182.70 × 67,535.39
  4. Step 4: Simplify right side
    120,236.82x = 12,168,708,014.84
  5. Step 5: Solve for x
    x = 12,168,708,014.84/120,236.82
  6. Step 6: Final answer
    x = 101,206.17

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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.