Home / 165,905.64-228,950.82-90,455.40

Finding the Fourth Proportional to 165,905.64, 228,950.82 and 90,455.40

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Solution

The fourth proportional to 165,905.64, 228,950.82 and 90,455.40 is: 124,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,905.64 : 228,950.82 = 90,455.40 : x
  2. Step 2: Convert to fraction form
    165,905.64/228,950.82 = 90,455.40/x
  3. Step 3: Cross multiply
    165,905.64x = 228,950.82 × 90,455.40
  4. Step 4: Simplify right side
    165,905.64x = 20,709,838,003.43
  5. Step 5: Solve for x
    x = 20,709,838,003.43/165,905.64
  6. Step 6: Final answer
    x = 124,829.02

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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.