Home / 165,895.16-228,935.43-90,443.66

Finding the Fourth Proportional to 165,895.16, 228,935.43 and 90,443.66

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Solution

The fourth proportional to 165,895.16, 228,935.43 and 90,443.66 is: 124,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,895.16 : 228,935.43 = 90,443.66 : x
  2. Step 2: Convert to fraction form
    165,895.16/228,935.43 = 90,443.66/x
  3. Step 3: Cross multiply
    165,895.16x = 228,935.43 × 90,443.66
  4. Step 4: Simplify right side
    165,895.16x = 20,705,757,048.20
  5. Step 5: Solve for x
    x = 20,705,757,048.20/165,895.16
  6. Step 6: Final answer
    x = 124,812.31

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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.