Home / 161,516.73-222,890.85-89,896.78

Finding the Fourth Proportional to 161,516.73, 222,890.85 and 89,896.78

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Solution

The fourth proportional to 161,516.73, 222,890.85 and 89,896.78 is: 124,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,516.73 : 222,890.85 = 89,896.78 : x
  2. Step 2: Convert to fraction form
    161,516.73/222,890.85 = 89,896.78/x
  3. Step 3: Cross multiply
    161,516.73x = 222,890.85 × 89,896.78
  4. Step 4: Simplify right side
    161,516.73x = 20,037,169,706.46
  5. Step 5: Solve for x
    x = 20,037,169,706.46/161,516.73
  6. Step 6: Final answer
    x = 124,056.31

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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.