Home / 112,205.70-168,697.35-109,872.90

Finding the Fourth Proportional to 112,205.70, 168,697.35 and 109,872.90

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Solution

The fourth proportional to 112,205.70, 168,697.35 and 109,872.90 is: 165,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,205.70 : 168,697.35 = 109,872.90 : x
  2. Step 2: Convert to fraction form
    112,205.70/168,697.35 = 109,872.90/x
  3. Step 3: Cross multiply
    112,205.70x = 168,697.35 × 109,872.90
  4. Step 4: Simplify right side
    112,205.70x = 18,535,267,066.82
  5. Step 5: Solve for x
    x = 18,535,267,066.82/112,205.70
  6. Step 6: Final answer
    x = 165,190.07

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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.