Home / 161,103.09-222,322.29-89,489.78

Finding the Fourth Proportional to 161,103.09, 222,322.29 and 89,489.78

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Solution

The fourth proportional to 161,103.09, 222,322.29 and 89,489.78 is: 123,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,103.09 : 222,322.29 = 89,489.78 : x
  2. Step 2: Convert to fraction form
    161,103.09/222,322.29 = 89,489.78/x
  3. Step 3: Cross multiply
    161,103.09x = 222,322.29 × 89,489.78
  4. Step 4: Simplify right side
    161,103.09x = 19,895,572,207.71
  5. Step 5: Solve for x
    x = 19,895,572,207.71/161,103.09
  6. Step 6: Final answer
    x = 123,495.90

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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.