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Finding the Fourth Proportional to 161,572.54, 222,969.63 and 89,950.72

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Solution

The fourth proportional to 161,572.54, 222,969.63 and 89,950.72 is: 124,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,572.54 : 222,969.63 = 89,950.72 : x
  2. Step 2: Convert to fraction form
    161,572.54/222,969.63 = 89,950.72/x
  3. Step 3: Cross multiply
    161,572.54x = 222,969.63 × 89,950.72
  4. Step 4: Simplify right side
    161,572.54x = 20,056,278,756.63
  5. Step 5: Solve for x
    x = 20,056,278,756.63/161,572.54
  6. Step 6: Final answer
    x = 124,131.73

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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.