Home / 161,412.14-222,722.56-89,790.32

Finding the Fourth Proportional to 161,412.14, 222,722.56 and 89,790.32

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Solution

The fourth proportional to 161,412.14, 222,722.56 and 89,790.32 is: 123,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,412.14 : 222,722.56 = 89,790.32 : x
  2. Step 2: Convert to fraction form
    161,412.14/222,722.56 = 89,790.32/x
  3. Step 3: Cross multiply
    161,412.14x = 222,722.56 × 89,790.32
  4. Step 4: Simplify right side
    161,412.14x = 19,998,330,602.66
  5. Step 5: Solve for x
    x = 19,998,330,602.66/161,412.14
  6. Step 6: Final answer
    x = 123,896.07

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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.