Home / 161,009.67-222,169.59-89,390.28

Finding the Fourth Proportional to 161,009.67, 222,169.59 and 89,390.28

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Solution

The fourth proportional to 161,009.67, 222,169.59 and 89,390.28 is: 123,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,009.67 : 222,169.59 = 89,390.28 : x
  2. Step 2: Convert to fraction form
    161,009.67/222,169.59 = 89,390.28/x
  3. Step 3: Cross multiply
    161,009.67x = 222,169.59 × 89,390.28
  4. Step 4: Simplify right side
    161,009.67x = 19,859,801,857.59
  5. Step 5: Solve for x
    x = 19,859,801,857.59/161,009.67
  6. Step 6: Final answer
    x = 123,345.40

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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.