Home / 165,215.08-228,000.18-89,768.44

Finding the Fourth Proportional to 165,215.08, 228,000.18 and 89,768.44

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Solution

The fourth proportional to 165,215.08, 228,000.18 and 89,768.44 is: 123,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,215.08 : 228,000.18 = 89,768.44 : x
  2. Step 2: Convert to fraction form
    165,215.08/228,000.18 = 89,768.44/x
  3. Step 3: Cross multiply
    165,215.08x = 228,000.18 × 89,768.44
  4. Step 4: Simplify right side
    165,215.08x = 20,467,220,478.32
  5. Step 5: Solve for x
    x = 20,467,220,478.32/165,215.08
  6. Step 6: Final answer
    x = 123,882.28

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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.