Home / 165,556.51-228,585.15-129,298.81

Finding the Fourth Proportional to 165,556.51, 228,585.15 and 129,298.81

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Solution

The fourth proportional to 165,556.51, 228,585.15 and 129,298.81 is: 178,523.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,556.51 : 228,585.15 = 129,298.81 : x
  2. Step 2: Convert to fraction form
    165,556.51/228,585.15 = 129,298.81/x
  3. Step 3: Cross multiply
    165,556.51x = 228,585.15 × 129,298.81
  4. Step 4: Simplify right side
    165,556.51x = 29,555,787,878.67
  5. Step 5: Solve for x
    x = 29,555,787,878.67/165,556.51
  6. Step 6: Final answer
    x = 178,523.86

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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.