Home / 165,586.12-228,513.30-90,137.80

Finding the Fourth Proportional to 165,586.12, 228,513.30 and 90,137.80

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Solution

The fourth proportional to 165,586.12, 228,513.30 and 90,137.80 is: 124,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,586.12 : 228,513.30 = 90,137.80 : x
  2. Step 2: Convert to fraction form
    165,586.12/228,513.30 = 90,137.80/x
  3. Step 3: Cross multiply
    165,586.12x = 228,513.30 × 90,137.80
  4. Step 4: Simplify right side
    165,586.12x = 20,597,686,132.74
  5. Step 5: Solve for x
    x = 20,597,686,132.74/165,586.12
  6. Step 6: Final answer
    x = 124,392.59

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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.