Home / 161,018.26-222,196.53-89,393.68

Finding the Fourth Proportional to 161,018.26, 222,196.53 and 89,393.68

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Solution

The fourth proportional to 161,018.26, 222,196.53 and 89,393.68 is: 123,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,018.26 : 222,196.53 = 89,393.68 : x
  2. Step 2: Convert to fraction form
    161,018.26/222,196.53 = 89,393.68/x
  3. Step 3: Cross multiply
    161,018.26x = 222,196.53 × 89,393.68
  4. Step 4: Simplify right side
    161,018.26x = 19,862,964,108.79
  5. Step 5: Solve for x
    x = 19,862,964,108.79/161,018.26
  6. Step 6: Final answer
    x = 123,358.45

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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.