Home / 165,728.24-228,707.48-90,276.72

Finding the Fourth Proportional to 165,728.24, 228,707.48 and 90,276.72

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Solution

The fourth proportional to 165,728.24, 228,707.48 and 90,276.72 is: 124,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,728.24 : 228,707.48 = 90,276.72 : x
  2. Step 2: Convert to fraction form
    165,728.24/228,707.48 = 90,276.72/x
  3. Step 3: Cross multiply
    165,728.24x = 228,707.48 × 90,276.72
  4. Step 4: Simplify right side
    165,728.24x = 20,646,961,133.87
  5. Step 5: Solve for x
    x = 20,646,961,133.87/165,728.24
  6. Step 6: Final answer
    x = 124,583.24

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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.