Home / 128,266.26-176,892.84-80,524.06

Finding the Fourth Proportional to 128,266.26, 176,892.84 and 80,524.06

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Solution

The fourth proportional to 128,266.26, 176,892.84 and 80,524.06 is: 111,051.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,266.26 : 176,892.84 = 80,524.06 : x
  2. Step 2: Convert to fraction form
    128,266.26/176,892.84 = 80,524.06/x
  3. Step 3: Cross multiply
    128,266.26x = 176,892.84 × 80,524.06
  4. Step 4: Simplify right side
    128,266.26x = 14,244,129,661.73
  5. Step 5: Solve for x
    x = 14,244,129,661.73/128,266.26
  6. Step 6: Final answer
    x = 111,051.26

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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.