Home / 238,011.45-356,792.67-80,129.49

Finding the Fourth Proportional to 238,011.45, 356,792.67 and 80,129.49

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Solution

The fourth proportional to 238,011.45, 356,792.67 and 80,129.49 is: 120,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,011.45 : 356,792.67 = 80,129.49 : x
  2. Step 2: Convert to fraction form
    238,011.45/356,792.67 = 80,129.49/x
  3. Step 3: Cross multiply
    238,011.45x = 356,792.67 × 80,129.49
  4. Step 4: Simplify right side
    238,011.45x = 28,589,614,682.84
  5. Step 5: Solve for x
    x = 28,589,614,682.84/238,011.45
  6. Step 6: Final answer
    x = 120,118.65

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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.