Home / 165,782.60-228,778.50-90,331.10

Finding the Fourth Proportional to 165,782.60, 228,778.50 and 90,331.10

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Solution

The fourth proportional to 165,782.60, 228,778.50 and 90,331.10 is: 124,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,782.60 : 228,778.50 = 90,331.10 : x
  2. Step 2: Convert to fraction form
    165,782.60/228,778.50 = 90,331.10/x
  3. Step 3: Cross multiply
    165,782.60x = 228,778.50 × 90,331.10
  4. Step 4: Simplify right side
    165,782.60x = 20,665,813,561.35
  5. Step 5: Solve for x
    x = 20,665,813,561.35/165,782.60
  6. Step 6: Final answer
    x = 124,656.11

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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.