Home / 117,919.61-162,731.98-64,207.57

Finding the Fourth Proportional to 117,919.61, 162,731.98 and 64,207.57

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Solution

The fourth proportional to 117,919.61, 162,731.98 and 64,207.57 is: 88,608.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,919.61 : 162,731.98 = 64,207.57 : x
  2. Step 2: Convert to fraction form
    117,919.61/162,731.98 = 64,207.57/x
  3. Step 3: Cross multiply
    117,919.61x = 162,731.98 × 64,207.57
  4. Step 4: Simplify right side
    117,919.61x = 10,448,624,997.09
  5. Step 5: Solve for x
    x = 10,448,624,997.09/117,919.61
  6. Step 6: Final answer
    x = 88,608.04

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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.