Home / 161,418.45-222,697.30-100,966.13

Finding the Fourth Proportional to 161,418.45, 222,697.30 and 100,966.13

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Solution

The fourth proportional to 161,418.45, 222,697.30 and 100,966.13 is: 139,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,418.45 : 222,697.30 = 100,966.13 : x
  2. Step 2: Convert to fraction form
    161,418.45/222,697.30 = 100,966.13/x
  3. Step 3: Cross multiply
    161,418.45x = 222,697.30 × 100,966.13
  4. Step 4: Simplify right side
    161,418.45x = 22,484,884,200.97
  5. Step 5: Solve for x
    x = 22,484,884,200.97/161,418.45
  6. Step 6: Final answer
    x = 139,295.62

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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.