Home / 165,355.01-228,188.31-89,903.51

Finding the Fourth Proportional to 165,355.01, 228,188.31 and 89,903.51

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Solution

The fourth proportional to 165,355.01, 228,188.31 and 89,903.51 is: 124,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,355.01 : 228,188.31 = 89,903.51 : x
  2. Step 2: Convert to fraction form
    165,355.01/228,188.31 = 89,903.51/x
  3. Step 3: Cross multiply
    165,355.01x = 228,188.31 × 89,903.51
  4. Step 4: Simplify right side
    165,355.01x = 20,514,930,009.97
  5. Step 5: Solve for x
    x = 20,514,930,009.97/165,355.01
  6. Step 6: Final answer
    x = 124,065.97

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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.