Home / 109,366.50-150,991.38-71,706.36

Finding the Fourth Proportional to 109,366.50, 150,991.38 and 71,706.36

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Solution

The fourth proportional to 109,366.50, 150,991.38 and 71,706.36 is: 98,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,366.50 : 150,991.38 = 71,706.36 : x
  2. Step 2: Convert to fraction form
    109,366.50/150,991.38 = 71,706.36/x
  3. Step 3: Cross multiply
    109,366.50x = 150,991.38 × 71,706.36
  4. Step 4: Simplify right side
    109,366.50x = 10,827,042,251.18
  5. Step 5: Solve for x
    x = 10,827,042,251.18/109,366.50
  6. Step 6: Final answer
    x = 98,997.79

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1.5x scale

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.