Home / 161,631.59-222,936.88-137,264.31

Finding the Fourth Proportional to 161,631.59, 222,936.88 and 137,264.31

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Solution

The fourth proportional to 161,631.59, 222,936.88 and 137,264.31 is: 189,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,631.59 : 222,936.88 = 137,264.31 : x
  2. Step 2: Convert to fraction form
    161,631.59/222,936.88 = 137,264.31/x
  3. Step 3: Cross multiply
    161,631.59x = 222,936.88 × 137,264.31
  4. Step 4: Simplify right side
    161,631.59x = 30,601,277,006.75
  5. Step 5: Solve for x
    x = 30,601,277,006.75/161,631.59
  6. Step 6: Final answer
    x = 189,327.33

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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.