Home / 109,487.09-151,116.37-71,179.96

Finding the Fourth Proportional to 109,487.09, 151,116.37 and 71,179.96

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Solution

The fourth proportional to 109,487.09, 151,116.37 and 71,179.96 is: 98,244.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,487.09 : 151,116.37 = 71,179.96 : x
  2. Step 2: Convert to fraction form
    109,487.09/151,116.37 = 71,179.96/x
  3. Step 3: Cross multiply
    109,487.09x = 151,116.37 × 71,179.96
  4. Step 4: Simplify right side
    109,487.09x = 10,756,457,171.95
  5. Step 5: Solve for x
    x = 10,756,457,171.95/109,487.09
  6. Step 6: Final answer
    x = 98,244.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.