Home / 165,583.76-228,507-90,132.08

Finding the Fourth Proportional to 165,583.76, 228,507 and 90,132.08

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Solution

The fourth proportional to 165,583.76, 228,507 and 90,132.08 is: 124,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,583.76 : 228,507 = 90,132.08 : x
  2. Step 2: Convert to fraction form
    165,583.76/228,507 = 90,132.08/x
  3. Step 3: Cross multiply
    165,583.76x = 228,507 × 90,132.08
  4. Step 4: Simplify right side
    165,583.76x = 20,595,811,204.56
  5. Step 5: Solve for x
    x = 20,595,811,204.56/165,583.76
  6. Step 6: Final answer
    x = 124,383.04

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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.