Home / 165,219.75-228,005.08-89,768.25

Finding the Fourth Proportional to 165,219.75, 228,005.08 and 89,768.25

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Solution

The fourth proportional to 165,219.75, 228,005.08 and 89,768.25 is: 123,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,219.75 : 228,005.08 = 89,768.25 : x
  2. Step 2: Convert to fraction form
    165,219.75/228,005.08 = 89,768.25/x
  3. Step 3: Cross multiply
    165,219.75x = 228,005.08 × 89,768.25
  4. Step 4: Simplify right side
    165,219.75x = 20,467,616,798.29
  5. Step 5: Solve for x
    x = 20,467,616,798.29/165,219.75
  6. Step 6: Final answer
    x = 123,881.18

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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.