Home / 165,733.16-248,708.70-90,905.75

Finding the Fourth Proportional to 165,733.16, 248,708.70 and 90,905.75

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Solution

The fourth proportional to 165,733.16, 248,708.70 and 90,905.75 is: 136,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,733.16 : 248,708.70 = 90,905.75 : x
  2. Step 2: Convert to fraction form
    165,733.16/248,708.70 = 90,905.75/x
  3. Step 3: Cross multiply
    165,733.16x = 248,708.70 × 90,905.75
  4. Step 4: Simplify right side
    165,733.16x = 22,609,050,905.03
  5. Step 5: Solve for x
    x = 22,609,050,905.03/165,733.16
  6. Step 6: Final answer
    x = 136,418.39

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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.