Home / 120,069.04-180,103.56-45,205.98

Finding the Fourth Proportional to 120,069.04, 180,103.56 and 45,205.98

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Solution

The fourth proportional to 120,069.04, 180,103.56 and 45,205.98 is: 67,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,069.04 : 180,103.56 = 45,205.98 : x
  2. Step 2: Convert to fraction form
    120,069.04/180,103.56 = 45,205.98/x
  3. Step 3: Cross multiply
    120,069.04x = 180,103.56 × 45,205.98
  4. Step 4: Simplify right side
    120,069.04x = 8,141,758,417.32
  5. Step 5: Solve for x
    x = 8,141,758,417.32/120,069.04
  6. Step 6: Final answer
    x = 67,808.97

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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.