Home / 165,709.12-228,678.24-90,257.44

Finding the Fourth Proportional to 165,709.12, 228,678.24 and 90,257.44

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Solution

The fourth proportional to 165,709.12, 228,678.24 and 90,257.44 is: 124,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,709.12 : 228,678.24 = 90,257.44 : x
  2. Step 2: Convert to fraction form
    165,709.12/228,678.24 = 90,257.44/x
  3. Step 3: Cross multiply
    165,709.12x = 228,678.24 × 90,257.44
  4. Step 4: Simplify right side
    165,709.12x = 20,639,912,526.11
  5. Step 5: Solve for x
    x = 20,639,912,526.11/165,709.12
  6. Step 6: Final answer
    x = 124,555.08

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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.