Home / 161,389.68-222,714.48-89,768.16

Finding the Fourth Proportional to 161,389.68, 222,714.48 and 89,768.16

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Solution

The fourth proportional to 161,389.68, 222,714.48 and 89,768.16 is: 123,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,389.68 : 222,714.48 = 89,768.16 : x
  2. Step 2: Convert to fraction form
    161,389.68/222,714.48 = 89,768.16/x
  3. Step 3: Cross multiply
    161,389.68x = 222,714.48 × 89,768.16
  4. Step 4: Simplify right side
    161,389.68x = 19,992,669,074.96
  5. Step 5: Solve for x
    x = 19,992,669,074.96/161,389.68
  6. Step 6: Final answer
    x = 123,878.24

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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.