Home / 161,281.13-222,575.55-89,662.35

Finding the Fourth Proportional to 161,281.13, 222,575.55 and 89,662.35

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Solution

The fourth proportional to 161,281.13, 222,575.55 and 89,662.35 is: 123,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,281.13 : 222,575.55 = 89,662.35 : x
  2. Step 2: Convert to fraction form
    161,281.13/222,575.55 = 89,662.35/x
  3. Step 3: Cross multiply
    161,281.13x = 222,575.55 × 89,662.35
  4. Step 4: Simplify right side
    161,281.13x = 19,956,646,865.54
  5. Step 5: Solve for x
    x = 19,956,646,865.54/161,281.13
  6. Step 6: Final answer
    x = 123,738.26

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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.