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Finding the Fourth Proportional to 67,157.68, 100,166.52 and 65,976.88

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Solution

The fourth proportional to 67,157.68, 100,166.52 and 65,976.88 is: 98,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,157.68 : 100,166.52 = 65,976.88 : x
  2. Step 2: Convert to fraction form
    67,157.68/100,166.52 = 65,976.88/x
  3. Step 3: Cross multiply
    67,157.68x = 100,166.52 × 65,976.88
  4. Step 4: Simplify right side
    67,157.68x = 6,608,674,470.06
  5. Step 5: Solve for x
    x = 6,608,674,470.06/67,157.68
  6. Step 6: Final answer
    x = 98,405.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.