Home / 165,690.15-228,652.38-90,238.65

Finding the Fourth Proportional to 165,690.15, 228,652.38 and 90,238.65

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Solution

The fourth proportional to 165,690.15, 228,652.38 and 90,238.65 is: 124,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,690.15 : 228,652.38 = 90,238.65 : x
  2. Step 2: Convert to fraction form
    165,690.15/228,652.38 = 90,238.65/x
  3. Step 3: Cross multiply
    165,690.15x = 228,652.38 × 90,238.65
  4. Step 4: Simplify right side
    165,690.15x = 20,633,282,090.49
  5. Step 5: Solve for x
    x = 20,633,282,090.49/165,690.15
  6. Step 6: Final answer
    x = 124,529.32

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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.