Home / 161,314.68-222,544.62-100,779.96

Finding the Fourth Proportional to 161,314.68, 222,544.62 and 100,779.96

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Solution

The fourth proportional to 161,314.68, 222,544.62 and 100,779.96 is: 139,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,314.68 : 222,544.62 = 100,779.96 : x
  2. Step 2: Convert to fraction form
    161,314.68/222,544.62 = 100,779.96/x
  3. Step 3: Cross multiply
    161,314.68x = 222,544.62 × 100,779.96
  4. Step 4: Simplify right side
    161,314.68x = 22,428,037,901.82
  5. Step 5: Solve for x
    x = 22,428,037,901.82/161,314.68
  6. Step 6: Final answer
    x = 139,032.84

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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.