Home / 120,069.37-180,104.06-45,206.31

Finding the Fourth Proportional to 120,069.37, 180,104.06 and 45,206.31

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Solution

The fourth proportional to 120,069.37, 180,104.06 and 45,206.31 is: 67,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,069.37 : 180,104.06 = 45,206.31 : x
  2. Step 2: Convert to fraction form
    120,069.37/180,104.06 = 45,206.31/x
  3. Step 3: Cross multiply
    120,069.37x = 180,104.06 × 45,206.31
  4. Step 4: Simplify right side
    120,069.37x = 8,141,839,742.59
  5. Step 5: Solve for x
    x = 8,141,839,742.59/120,069.37
  6. Step 6: Final answer
    x = 67,809.47

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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.