Home / 165,536.40-248,434.20-76,800.90

Finding the Fourth Proportional to 165,536.40, 248,434.20 and 76,800.90

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Solution

The fourth proportional to 165,536.40, 248,434.20 and 76,800.90 is: 115,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,536.40 : 248,434.20 = 76,800.90 : x
  2. Step 2: Convert to fraction form
    165,536.40/248,434.20 = 76,800.90/x
  3. Step 3: Cross multiply
    165,536.40x = 248,434.20 × 76,800.90
  4. Step 4: Simplify right side
    165,536.40x = 19,079,970,150.78
  5. Step 5: Solve for x
    x = 19,079,970,150.78/165,536.40
  6. Step 6: Final answer
    x = 115,261.48

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1.5x scale

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.