Home / 101,266.20-151,899.30-99,516.60

Finding the Fourth Proportional to 101,266.20, 151,899.30 and 99,516.60

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Solution

The fourth proportional to 101,266.20, 151,899.30 and 99,516.60 is: 149,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.20 : 151,899.30 = 99,516.60 : x
  2. Step 2: Convert to fraction form
    101,266.20/151,899.30 = 99,516.60/x
  3. Step 3: Cross multiply
    101,266.20x = 151,899.30 × 99,516.60
  4. Step 4: Simplify right side
    101,266.20x = 15,116,501,878.38
  5. Step 5: Solve for x
    x = 15,116,501,878.38/101,266.20
  6. Step 6: Final answer
    x = 149,274.90

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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.