Home / 120,896.08-180,888.08-108,618.40

Finding the Fourth Proportional to 120,896.08, 180,888.08 and 108,618.40

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Solution

The fourth proportional to 120,896.08, 180,888.08 and 108,618.40 is: 162,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,896.08 : 180,888.08 = 108,618.40 : x
  2. Step 2: Convert to fraction form
    120,896.08/180,888.08 = 108,618.40/x
  3. Step 3: Cross multiply
    120,896.08x = 180,888.08 × 108,618.40
  4. Step 4: Simplify right side
    120,896.08x = 19,647,773,828.67
  5. Step 5: Solve for x
    x = 19,647,773,828.67/120,896.08
  6. Step 6: Final answer
    x = 162,517.87

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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.