Home / 111,925.10-167,778.30-100,115.30

Finding the Fourth Proportional to 111,925.10, 167,778.30 and 100,115.30

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Solution

The fourth proportional to 111,925.10, 167,778.30 and 100,115.30 is: 150,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,925.10 : 167,778.30 = 100,115.30 : x
  2. Step 2: Convert to fraction form
    111,925.10/167,778.30 = 100,115.30/x
  3. Step 3: Cross multiply
    111,925.10x = 167,778.30 × 100,115.30
  4. Step 4: Simplify right side
    111,925.10x = 16,797,174,837.99
  5. Step 5: Solve for x
    x = 16,797,174,837.99/111,925.10
  6. Step 6: Final answer
    x = 150,075.14

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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.