Home / 165,740.26-228,723.06-90,288.76

Finding the Fourth Proportional to 165,740.26, 228,723.06 and 90,288.76

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Solution

The fourth proportional to 165,740.26, 228,723.06 and 90,288.76 is: 124,599.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,740.26 : 228,723.06 = 90,288.76 : x
  2. Step 2: Convert to fraction form
    165,740.26/228,723.06 = 90,288.76/x
  3. Step 3: Cross multiply
    165,740.26x = 228,723.06 × 90,288.76
  4. Step 4: Simplify right side
    165,740.26x = 20,651,121,470.81
  5. Step 5: Solve for x
    x = 20,651,121,470.81/165,740.26
  6. Step 6: Final answer
    x = 124,599.31

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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.