Home / 102,986.10-154,151.10-73,461.60

Finding the Fourth Proportional to 102,986.10, 154,151.10 and 73,461.60

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Solution

The fourth proportional to 102,986.10, 154,151.10 and 73,461.60 is: 109,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,986.10 : 154,151.10 = 73,461.60 : x
  2. Step 2: Convert to fraction form
    102,986.10/154,151.10 = 73,461.60/x
  3. Step 3: Cross multiply
    102,986.10x = 154,151.10 × 73,461.60
  4. Step 4: Simplify right side
    102,986.10x = 11,324,186,447.76
  5. Step 5: Solve for x
    x = 11,324,186,447.76/102,986.10
  6. Step 6: Final answer
    x = 109,958.40

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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.