Home / 118,367.88-163,157.94-80,115.36

Finding the Fourth Proportional to 118,367.88, 163,157.94 and 80,115.36

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Solution

The fourth proportional to 118,367.88, 163,157.94 and 80,115.36 is: 110,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367.88 : 163,157.94 = 80,115.36 : x
  2. Step 2: Convert to fraction form
    118,367.88/163,157.94 = 80,115.36/x
  3. Step 3: Cross multiply
    118,367.88x = 163,157.94 × 80,115.36
  4. Step 4: Simplify right side
    118,367.88x = 13,071,457,099.96
  5. Step 5: Solve for x
    x = 13,071,457,099.96/118,367.88
  6. Step 6: Final answer
    x = 110,430.78

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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.