Home / 167,640.04-231,438.90-111,127.96

Finding the Fourth Proportional to 167,640.04, 231,438.90 and 111,127.96

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Solution

The fourth proportional to 167,640.04, 231,438.90 and 111,127.96 is: 153,419.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,640.04 : 231,438.90 = 111,127.96 : x
  2. Step 2: Convert to fraction form
    167,640.04/231,438.90 = 111,127.96/x
  3. Step 3: Cross multiply
    167,640.04x = 231,438.90 × 111,127.96
  4. Step 4: Simplify right side
    167,640.04x = 25,719,332,821.64
  5. Step 5: Solve for x
    x = 25,719,332,821.64/167,640.04
  6. Step 6: Final answer
    x = 153,419.99

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1.5x scale

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.