Home / 111,970.10-167,845.80-100,160.30

Finding the Fourth Proportional to 111,970.10, 167,845.80 and 100,160.30

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Solution

The fourth proportional to 111,970.10, 167,845.80 and 100,160.30 is: 150,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,970.10 : 167,845.80 = 100,160.30 : x
  2. Step 2: Convert to fraction form
    111,970.10/167,845.80 = 100,160.30/x
  3. Step 3: Cross multiply
    111,970.10x = 167,845.80 × 100,160.30
  4. Step 4: Simplify right side
    111,970.10x = 16,811,485,681.74
  5. Step 5: Solve for x
    x = 16,811,485,681.74/111,970.10
  6. Step 6: Final answer
    x = 150,142.63

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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.