Home / 120,103.22-180,095.24-70,195.88

Finding the Fourth Proportional to 120,103.22, 180,095.24 and 70,195.88

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Solution

The fourth proportional to 120,103.22, 180,095.24 and 70,195.88 is: 105,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,103.22 : 180,095.24 = 70,195.88 : x
  2. Step 2: Convert to fraction form
    120,103.22/180,095.24 = 70,195.88/x
  3. Step 3: Cross multiply
    120,103.22x = 180,095.24 × 70,195.88
  4. Step 4: Simplify right side
    120,103.22x = 12,641,943,855.61
  5. Step 5: Solve for x
    x = 12,641,943,855.61/120,103.22
  6. Step 6: Final answer
    x = 105,258.99

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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.