Home / 165,999.51-229,080.05-90,549.63

Finding the Fourth Proportional to 165,999.51, 229,080.05 and 90,549.63

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Solution

The fourth proportional to 165,999.51, 229,080.05 and 90,549.63 is: 124,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,999.51 : 229,080.05 = 90,549.63 : x
  2. Step 2: Convert to fraction form
    165,999.51/229,080.05 = 90,549.63/x
  3. Step 3: Cross multiply
    165,999.51x = 229,080.05 × 90,549.63
  4. Step 4: Simplify right side
    165,999.51x = 20,743,113,315.13
  5. Step 5: Solve for x
    x = 20,743,113,315.13/165,999.51
  6. Step 6: Final answer
    x = 124,958.88

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1.5x scale

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.