Home / 165,812.80-248,546.40-90,817.60

Finding the Fourth Proportional to 165,812.80, 248,546.40 and 90,817.60

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Solution

The fourth proportional to 165,812.80, 248,546.40 and 90,817.60 is: 136,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,812.80 : 248,546.40 = 90,817.60 : x
  2. Step 2: Convert to fraction form
    165,812.80/248,546.40 = 90,817.60/x
  3. Step 3: Cross multiply
    165,812.80x = 248,546.40 × 90,817.60
  4. Step 4: Simplify right side
    165,812.80x = 22,572,387,536.64
  5. Step 5: Solve for x
    x = 22,572,387,536.64/165,812.80
  6. Step 6: Final answer
    x = 136,131.76

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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.