Home / 111,279.53-166,729.12-79,527.37

Finding the Fourth Proportional to 111,279.53, 166,729.12 and 79,527.37

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Solution

The fourth proportional to 111,279.53, 166,729.12 and 79,527.37 is: 119,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,279.53 : 166,729.12 = 79,527.37 : x
  2. Step 2: Convert to fraction form
    111,279.53/166,729.12 = 79,527.37/x
  3. Step 3: Cross multiply
    111,279.53x = 166,729.12 × 79,527.37
  4. Step 4: Simplify right side
    111,279.53x = 13,259,528,416.01
  5. Step 5: Solve for x
    x = 13,259,528,416.01/111,279.53
  6. Step 6: Final answer
    x = 119,155.14

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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.