Home / 111,968.10-167,842.80-100,158.30

Finding the Fourth Proportional to 111,968.10, 167,842.80 and 100,158.30

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Solution

The fourth proportional to 111,968.10, 167,842.80 and 100,158.30 is: 150,139.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,968.10 : 167,842.80 = 100,158.30 : x
  2. Step 2: Convert to fraction form
    111,968.10/167,842.80 = 100,158.30/x
  3. Step 3: Cross multiply
    111,968.10x = 167,842.80 × 100,158.30
  4. Step 4: Simplify right side
    111,968.10x = 16,810,849,515.24
  5. Step 5: Solve for x
    x = 16,810,849,515.24/111,968.10
  6. Step 6: Final answer
    x = 150,139.63

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1.5x scale

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.