Home / 168,749.12-253,583.52-89,919.68

Finding the Fourth Proportional to 168,749.12, 253,583.52 and 89,919.68

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Solution

The fourth proportional to 168,749.12, 253,583.52 and 89,919.68 is: 135,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,749.12 : 253,583.52 = 89,919.68 : x
  2. Step 2: Convert to fraction form
    168,749.12/253,583.52 = 89,919.68/x
  3. Step 3: Cross multiply
    168,749.12x = 253,583.52 × 89,919.68
  4. Step 4: Simplify right side
    168,749.12x = 22,802,148,971.67
  5. Step 5: Solve for x
    x = 22,802,148,971.67/168,749.12
  6. Step 6: Final answer
    x = 135,124.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.