Home / 161,057.28-222,256.08-89,435.76

Finding the Fourth Proportional to 161,057.28, 222,256.08 and 89,435.76

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Solution

The fourth proportional to 161,057.28, 222,256.08 and 89,435.76 is: 123,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,057.28 : 222,256.08 = 89,435.76 : x
  2. Step 2: Convert to fraction form
    161,057.28/222,256.08 = 89,435.76/x
  3. Step 3: Cross multiply
    161,057.28x = 222,256.08 × 89,435.76
  4. Step 4: Simplify right side
    161,057.28x = 19,877,641,429.42
  5. Step 5: Solve for x
    x = 19,877,641,429.42/161,057.28
  6. Step 6: Final answer
    x = 123,419.70

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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.