Home / 117,913.86-162,720.14-64,198.80

Finding the Fourth Proportional to 117,913.86, 162,720.14 and 64,198.80

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Solution

The fourth proportional to 117,913.86, 162,720.14 and 64,198.80 is: 88,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,913.86 : 162,720.14 = 64,198.80 : x
  2. Step 2: Convert to fraction form
    117,913.86/162,720.14 = 64,198.80/x
  3. Step 3: Cross multiply
    117,913.86x = 162,720.14 × 64,198.80
  4. Step 4: Simplify right side
    117,913.86x = 10,446,437,402.84
  5. Step 5: Solve for x
    x = 10,446,437,402.84/117,913.86
  6. Step 6: Final answer
    x = 88,593.80

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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.