Home / 128,254.48-177,040.58-114,802

Finding the Fourth Proportional to 128,254.48, 177,040.58 and 114,802

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Solution

The fourth proportional to 128,254.48, 177,040.58 and 114,802 is: 158,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,254.48 : 177,040.58 = 114,802 : x
  2. Step 2: Convert to fraction form
    128,254.48/177,040.58 = 114,802/x
  3. Step 3: Cross multiply
    128,254.48x = 177,040.58 × 114,802
  4. Step 4: Simplify right side
    128,254.48x = 20,324,612,665.16
  5. Step 5: Solve for x
    x = 20,324,612,665.16/128,254.48
  6. Step 6: Final answer
    x = 158,470.98

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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.