Home / 89,723.67-122,922.03-86,360.55

Finding the Fourth Proportional to 89,723.67, 122,922.03 and 86,360.55

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Solution

The fourth proportional to 89,723.67, 122,922.03 and 86,360.55 is: 118,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,723.67 : 122,922.03 = 86,360.55 : x
  2. Step 2: Convert to fraction form
    89,723.67/122,922.03 = 86,360.55/x
  3. Step 3: Cross multiply
    89,723.67x = 122,922.03 × 86,360.55
  4. Step 4: Simplify right side
    89,723.67x = 10,615,614,117.92
  5. Step 5: Solve for x
    x = 10,615,614,117.92/89,723.67
  6. Step 6: Final answer
    x = 118,314.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.