Home / 130,342.38-179,779.73-119,621.88

Finding the Fourth Proportional to 130,342.38, 179,779.73 and 119,621.88

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Solution

The fourth proportional to 130,342.38, 179,779.73 and 119,621.88 is: 164,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,342.38 : 179,779.73 = 119,621.88 : x
  2. Step 2: Convert to fraction form
    130,342.38/179,779.73 = 119,621.88/x
  3. Step 3: Cross multiply
    130,342.38x = 179,779.73 × 119,621.88
  4. Step 4: Simplify right side
    130,342.38x = 21,505,589,924.63
  5. Step 5: Solve for x
    x = 21,505,589,924.63/130,342.38
  6. Step 6: Final answer
    x = 164,993.07

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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.