Home / 131,983.49-182,123.58-80,998.36

Finding the Fourth Proportional to 131,983.49, 182,123.58 and 80,998.36

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Solution

The fourth proportional to 131,983.49, 182,123.58 and 80,998.36 is: 111,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,983.49 : 182,123.58 = 80,998.36 : x
  2. Step 2: Convert to fraction form
    131,983.49/182,123.58 = 80,998.36/x
  3. Step 3: Cross multiply
    131,983.49x = 182,123.58 × 80,998.36
  4. Step 4: Simplify right side
    131,983.49x = 14,751,711,920.92
  5. Step 5: Solve for x
    x = 14,751,711,920.92/131,983.49
  6. Step 6: Final answer
    x = 111,769.38

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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.