Home / 165,316.09-228,135.12-89,864.59

Finding the Fourth Proportional to 165,316.09, 228,135.12 and 89,864.59

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Solution

The fourth proportional to 165,316.09, 228,135.12 and 89,864.59 is: 124,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,316.09 : 228,135.12 = 89,864.59 : x
  2. Step 2: Convert to fraction form
    165,316.09/228,135.12 = 89,864.59/x
  3. Step 3: Cross multiply
    165,316.09x = 228,135.12 × 89,864.59
  4. Step 4: Simplify right side
    165,316.09x = 20,501,269,023.40
  5. Step 5: Solve for x
    x = 20,501,269,023.40/165,316.09
  6. Step 6: Final answer
    x = 124,012.54

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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.