Home / 161,173.84-222,327.24-100,639.39

Finding the Fourth Proportional to 161,173.84, 222,327.24 and 100,639.39

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Solution

The fourth proportional to 161,173.84, 222,327.24 and 100,639.39 is: 138,824.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,173.84 : 222,327.24 = 100,639.39 : x
  2. Step 2: Convert to fraction form
    161,173.84/222,327.24 = 100,639.39/x
  3. Step 3: Cross multiply
    161,173.84x = 222,327.24 × 100,639.39
  4. Step 4: Simplify right side
    161,173.84x = 22,374,877,813.98
  5. Step 5: Solve for x
    x = 22,374,877,813.98/161,173.84
  6. Step 6: Final answer
    x = 138,824.50

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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.