Home / 130,383.42-179,922.88-80,072.70

Finding the Fourth Proportional to 130,383.42, 179,922.88 and 80,072.70

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Solution

The fourth proportional to 130,383.42, 179,922.88 and 80,072.70 is: 110,496.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,383.42 : 179,922.88 = 80,072.70 : x
  2. Step 2: Convert to fraction form
    130,383.42/179,922.88 = 80,072.70/x
  3. Step 3: Cross multiply
    130,383.42x = 179,922.88 × 80,072.70
  4. Step 4: Simplify right side
    130,383.42x = 14,406,910,793.38
  5. Step 5: Solve for x
    x = 14,406,910,793.38/130,383.42
  6. Step 6: Final answer
    x = 110,496.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.