Home / 128,518.22-177,435.54-82,596.50

Finding the Fourth Proportional to 128,518.22, 177,435.54 and 82,596.50

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Solution

The fourth proportional to 128,518.22, 177,435.54 and 82,596.50 is: 114,034.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,518.22 : 177,435.54 = 82,596.50 : x
  2. Step 2: Convert to fraction form
    128,518.22/177,435.54 = 82,596.50/x
  3. Step 3: Cross multiply
    128,518.22x = 177,435.54 × 82,596.50
  4. Step 4: Simplify right side
    128,518.22x = 14,655,554,579.61
  5. Step 5: Solve for x
    x = 14,655,554,579.61/128,518.22
  6. Step 6: Final answer
    x = 114,034.84

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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.