Home / 135,349.22-186,779.34-74,919.92

Finding the Fourth Proportional to 135,349.22, 186,779.34 and 74,919.92

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Solution

The fourth proportional to 135,349.22, 186,779.34 and 74,919.92 is: 103,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,349.22 : 186,779.34 = 74,919.92 : x
  2. Step 2: Convert to fraction form
    135,349.22/186,779.34 = 74,919.92/x
  3. Step 3: Cross multiply
    135,349.22x = 186,779.34 × 74,919.92
  4. Step 4: Simplify right side
    135,349.22x = 13,993,493,210.45
  5. Step 5: Solve for x
    x = 13,993,493,210.45/135,349.22
  6. Step 6: Final answer
    x = 103,388.06

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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.