Home / 165,313.09-228,130.99-89,861.59

Finding the Fourth Proportional to 165,313.09, 228,130.99 and 89,861.59

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Solution

The fourth proportional to 165,313.09, 228,130.99 and 89,861.59 is: 124,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,313.09 : 228,130.99 = 89,861.59 : x
  2. Step 2: Convert to fraction form
    165,313.09/228,130.99 = 89,861.59/x
  3. Step 3: Cross multiply
    165,313.09x = 228,130.99 × 89,861.59
  4. Step 4: Simplify right side
    165,313.09x = 20,500,213,489.67
  5. Step 5: Solve for x
    x = 20,500,213,489.67/165,313.09
  6. Step 6: Final answer
    x = 124,008.41

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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.