Home / 111,511.26-167,168.34-85,332.87

Finding the Fourth Proportional to 111,511.26, 167,168.34 and 85,332.87

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Solution

The fourth proportional to 111,511.26, 167,168.34 and 85,332.87 is: 127,923.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,511.26 : 167,168.34 = 85,332.87 : x
  2. Step 2: Convert to fraction form
    111,511.26/167,168.34 = 85,332.87/x
  3. Step 3: Cross multiply
    111,511.26x = 167,168.34 × 85,332.87
  4. Step 4: Simplify right side
    111,511.26x = 14,264,954,225.34
  5. Step 5: Solve for x
    x = 14,264,954,225.34/111,511.26
  6. Step 6: Final answer
    x = 127,923.89

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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.