Home / 165,786.28-228,784.80-90,334.72

Finding the Fourth Proportional to 165,786.28, 228,784.80 and 90,334.72

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Solution

The fourth proportional to 165,786.28, 228,784.80 and 90,334.72 is: 124,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,786.28 : 228,784.80 = 90,334.72 : x
  2. Step 2: Convert to fraction form
    165,786.28/228,784.80 = 90,334.72/x
  3. Step 3: Cross multiply
    165,786.28x = 228,784.80 × 90,334.72
  4. Step 4: Simplify right side
    165,786.28x = 20,667,210,848.26
  5. Step 5: Solve for x
    x = 20,667,210,848.26/165,786.28
  6. Step 6: Final answer
    x = 124,661.77

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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.