Home / 165,916.72-228,966.24-90,465.22

Finding the Fourth Proportional to 165,916.72, 228,966.24 and 90,465.22

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Solution

The fourth proportional to 165,916.72, 228,966.24 and 90,465.22 is: 124,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,916.72 : 228,966.24 = 90,465.22 : x
  2. Step 2: Convert to fraction form
    165,916.72/228,966.24 = 90,465.22/x
  3. Step 3: Cross multiply
    165,916.72x = 228,966.24 × 90,465.22
  4. Step 4: Simplify right side
    165,916.72x = 20,713,481,274.17
  5. Step 5: Solve for x
    x = 20,713,481,274.17/165,916.72
  6. Step 6: Final answer
    x = 124,842.64

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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.