Home / 165,887.28-228,923.28-90,436.32

Finding the Fourth Proportional to 165,887.28, 228,923.28 and 90,436.32

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Solution

The fourth proportional to 165,887.28, 228,923.28 and 90,436.32 is: 124,801.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,887.28 : 228,923.28 = 90,436.32 : x
  2. Step 2: Convert to fraction form
    165,887.28/228,923.28 = 90,436.32/x
  3. Step 3: Cross multiply
    165,887.28x = 228,923.28 × 90,436.32
  4. Step 4: Simplify right side
    165,887.28x = 20,702,979,005.53
  5. Step 5: Solve for x
    x = 20,702,979,005.53/165,887.28
  6. Step 6: Final answer
    x = 124,801.49

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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.