Home / 128,447.56-177,140.52-110,292.61

Finding the Fourth Proportional to 128,447.56, 177,140.52 and 110,292.61

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Solution

The fourth proportional to 128,447.56, 177,140.52 and 110,292.61 is: 152,103.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,447.56 : 177,140.52 = 110,292.61 : x
  2. Step 2: Convert to fraction form
    128,447.56/177,140.52 = 110,292.61/x
  3. Step 3: Cross multiply
    128,447.56x = 177,140.52 × 110,292.61
  4. Step 4: Simplify right side
    128,447.56x = 19,537,290,287.56
  5. Step 5: Solve for x
    x = 19,537,290,287.56/128,447.56
  6. Step 6: Final answer
    x = 152,103.24

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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.