Home / 109,506.73-151,110.24-61,771.81

Finding the Fourth Proportional to 109,506.73, 151,110.24 and 61,771.81

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Solution

The fourth proportional to 109,506.73, 151,110.24 and 61,771.81 is: 85,239.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,506.73 : 151,110.24 = 61,771.81 : x
  2. Step 2: Convert to fraction form
    109,506.73/151,110.24 = 61,771.81/x
  3. Step 3: Cross multiply
    109,506.73x = 151,110.24 × 61,771.81
  4. Step 4: Simplify right side
    109,506.73x = 9,334,353,034.33
  5. Step 5: Solve for x
    x = 9,334,353,034.33/109,506.73
  6. Step 6: Final answer
    x = 85,239.99

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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.