Home / 111,720.20-167,531.70-36,811.40

Finding the Fourth Proportional to 111,720.20, 167,531.70 and 36,811.40

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Solution

The fourth proportional to 111,720.20, 167,531.70 and 36,811.40 is: 55,201.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,720.20 : 167,531.70 = 36,811.40 : x
  2. Step 2: Convert to fraction form
    111,720.20/167,531.70 = 36,811.40/x
  3. Step 3: Cross multiply
    111,720.20x = 167,531.70 × 36,811.40
  4. Step 4: Simplify right side
    111,720.20x = 6,167,076,421.38
  5. Step 5: Solve for x
    x = 6,167,076,421.38/111,720.20
  6. Step 6: Final answer
    x = 55,201.09

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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.