Home / 161,288.32-222,577.68-89,666.08

Finding the Fourth Proportional to 161,288.32, 222,577.68 and 89,666.08

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Solution

The fourth proportional to 161,288.32, 222,577.68 and 89,666.08 is: 123,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,288.32 : 222,577.68 = 89,666.08 : x
  2. Step 2: Convert to fraction form
    161,288.32/222,577.68 = 89,666.08/x
  3. Step 3: Cross multiply
    161,288.32x = 222,577.68 × 89,666.08
  4. Step 4: Simplify right side
    161,288.32x = 19,957,668,061.09
  5. Step 5: Solve for x
    x = 19,957,668,061.09/161,288.32
  6. Step 6: Final answer
    x = 123,739.08

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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.