Home / 161,531.56-222,913.55-89,910.04

Finding the Fourth Proportional to 161,531.56, 222,913.55 and 89,910.04

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Solution

The fourth proportional to 161,531.56, 222,913.55 and 89,910.04 is: 124,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,531.56 : 222,913.55 = 89,910.04 : x
  2. Step 2: Convert to fraction form
    161,531.56/222,913.55 = 89,910.04/x
  3. Step 3: Cross multiply
    161,531.56x = 222,913.55 × 89,910.04
  4. Step 4: Simplify right side
    161,531.56x = 20,042,166,197.04
  5. Step 5: Solve for x
    x = 20,042,166,197.04/161,531.56
  6. Step 6: Final answer
    x = 124,075.86

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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.