Home / 161,313.18-222,611.45-89,688.93

Finding the Fourth Proportional to 161,313.18, 222,611.45 and 89,688.93

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Solution

The fourth proportional to 161,313.18, 222,611.45 and 89,688.93 is: 123,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,313.18 : 222,611.45 = 89,688.93 : x
  2. Step 2: Convert to fraction form
    161,313.18/222,611.45 = 89,688.93/x
  3. Step 3: Cross multiply
    161,313.18x = 222,611.45 × 89,688.93
  4. Step 4: Simplify right side
    161,313.18x = 19,965,782,756.25
  5. Step 5: Solve for x
    x = 19,965,782,756.25/161,313.18
  6. Step 6: Final answer
    x = 123,770.31

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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.