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Finding the Fourth Proportional to 161,241.39, 222,612.71 and 103,900.95

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Solution

The fourth proportional to 161,241.39, 222,612.71 and 103,900.95 is: 143,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,241.39 : 222,612.71 = 103,900.95 : x
  2. Step 2: Convert to fraction form
    161,241.39/222,612.71 = 103,900.95/x
  3. Step 3: Cross multiply
    161,241.39x = 222,612.71 × 103,900.95
  4. Step 4: Simplify right side
    161,241.39x = 23,129,671,531.57
  5. Step 5: Solve for x
    x = 23,129,671,531.57/161,241.39
  6. Step 6: Final answer
    x = 143,447.48

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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.