Home / 165,606.72-228,530.40-90,155.28

Finding the Fourth Proportional to 165,606.72, 228,530.40 and 90,155.28

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Solution

The fourth proportional to 165,606.72, 228,530.40 and 90,155.28 is: 124,410.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,606.72 : 228,530.40 = 90,155.28 : x
  2. Step 2: Convert to fraction form
    165,606.72/228,530.40 = 90,155.28/x
  3. Step 3: Cross multiply
    165,606.72x = 228,530.40 × 90,155.28
  4. Step 4: Simplify right side
    165,606.72x = 20,603,222,200.51
  5. Step 5: Solve for x
    x = 20,603,222,200.51/165,606.72
  6. Step 6: Final answer
    x = 124,410.54

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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.