Home / 128,262.07-176,958.50-82,997.32

Finding the Fourth Proportional to 128,262.07, 176,958.50 and 82,997.32

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Solution

The fourth proportional to 128,262.07, 176,958.50 and 82,997.32 is: 114,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,262.07 : 176,958.50 = 82,997.32 : x
  2. Step 2: Convert to fraction form
    128,262.07/176,958.50 = 82,997.32/x
  3. Step 3: Cross multiply
    128,262.07x = 176,958.50 × 82,997.32
  4. Step 4: Simplify right side
    128,262.07x = 14,687,080,705.08
  5. Step 5: Solve for x
    x = 14,687,080,705.08/128,262.07
  6. Step 6: Final answer
    x = 114,508.37

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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.