Home / 165,876.08-228,908.80-90,424.56

Finding the Fourth Proportional to 165,876.08, 228,908.80 and 90,424.56

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Solution

The fourth proportional to 165,876.08, 228,908.80 and 90,424.56 is: 124,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,876.08 : 228,908.80 = 90,424.56 : x
  2. Step 2: Convert to fraction form
    165,876.08/228,908.80 = 90,424.56/x
  3. Step 3: Cross multiply
    165,876.08x = 228,908.80 × 90,424.56
  4. Step 4: Simplify right side
    165,876.08x = 20,698,977,520.13
  5. Step 5: Solve for x
    x = 20,698,977,520.13/165,876.08
  6. Step 6: Final answer
    x = 124,785.79

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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.