Home / 117,493.20-162,166.86-72,172.08

Finding the Fourth Proportional to 117,493.20, 162,166.86 and 72,172.08

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Solution

The fourth proportional to 117,493.20, 162,166.86 and 72,172.08 is: 99,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,493.20 : 162,166.86 = 72,172.08 : x
  2. Step 2: Convert to fraction form
    117,493.20/162,166.86 = 72,172.08/x
  3. Step 3: Cross multiply
    117,493.20x = 162,166.86 × 72,172.08
  4. Step 4: Simplify right side
    117,493.20x = 11,703,919,593.27
  5. Step 5: Solve for x
    x = 11,703,919,593.27/117,493.20
  6. Step 6: Final answer
    x = 99,613.59

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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.