Home / 161,105.64-222,302.34-89,486.28

Finding the Fourth Proportional to 161,105.64, 222,302.34 and 89,486.28

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Solution

The fourth proportional to 161,105.64, 222,302.34 and 89,486.28 is: 123,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,105.64 : 222,302.34 = 89,486.28 : x
  2. Step 2: Convert to fraction form
    161,105.64/222,302.34 = 89,486.28/x
  3. Step 3: Cross multiply
    161,105.64x = 222,302.34 × 89,486.28
  4. Step 4: Simplify right side
    161,105.64x = 19,893,009,441.90
  5. Step 5: Solve for x
    x = 19,893,009,441.90/161,105.64
  6. Step 6: Final answer
    x = 123,478.04

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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.